Updated on 2024/03/16

写真a

 
KOYAMA Toshiyuki
 
Organization
Graduate School of Engineering Materials Design Innovation Engineering 1 Professor
Graduate School
Graduate School of Engineering
Undergraduate School
School of Engineering Materials Science and Engineering
Title
Professor

Degree 1

  1. 博士(工学) ( 1996.9   名古屋工業大学 ) 

Research Interests 4

  1. 状態図

  2. 相変態

  3. フェーズフィールド法

  4. 材料組織学

Research Areas 1

  1. Nanotechnology/Materials / Metallic material properties  / Computational Materials Design

Current Research Project and SDGs 1

  1. 材料設計計算工学に基づく各種材料開発および最適化

Research History 2

  1. Nagoya University   Graduate School of Engineering Research Center for Materials Backcasting Technology   Director in General

    2018.4

  2. Nagoya University   Graduate School of Informatics Future Value Creation Research Center (FV-CRC)

    2017.4

Education 2

  1. Nagoya Institute of Technology   Graduate School, Division of Engineering

    - 1988.3

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    Country: Japan

  2. Nagoya Institute of Technology   Faculty of Engineering

    - 1986.3

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    Country: Japan

Professional Memberships 5

  1. (公社)日本金属学会

  2. (一社)日本鉄鋼協会

  3. (一社)日本機械学会

  4. The Minerals, Metals & Materials Society (TMS)

  5. Materials Research Society

Committee Memberships 6

  1. 日本金属学会理事会   理事  

    2023.4   

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    Committee type:Academic society

  2. 日本学術会議   連係会員  

    2020.10   

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    Committee type:Government

  3. 日本金属学会セミナー・シンポジウム委員会   委員長  

    2016.4 - 2021.3   

  4. 日本金属学会理事会   理事  

    2016.4 - 2021.3   

  5. 日本金属学会分科会   第3分科委員長  

    2015.4 - 2021.4   

  6. 日本金属学会日本鉄鋼協会東海支部理事会   理事  

    2014.4   

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Awards 10

  1. The Editor’s Choice Award

    2023.3   ASM International   imple Approach for Evaluating the Possibility of Sluggish Diffusion in High-Entropy Alloys

    T.Koyama, Y.Tsukada, T.Abe

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    Award type:Honored in official journal of a scientific society, scientific journal  Country:United States

  2. 俵論文賞

    2016.10   日本鉄鋼協会  

  3. 永井科学技術財団賞(学術賞)

    2013.3   永井科学技術財団  

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    Country:Japan

  4. まてりあ論文賞

    2012.9   日本金属学会  

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    Country:Japan

  5. まてりあ啓発・教育賞

    2012.9   日本金属学会  

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    Country:Japan

  6. 優秀講演表彰

    2010.2   日本機械学会  

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    Country:Japan

  7. 学術記念賞(西山記念賞)

    2008.3   日本鉄鋼協会  

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    Country:Japan

  8. 論文賞

    2006.9   日本金属学会  

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    Country:Japan

  9. 功績賞[組織部門]

    2006.3   日本金属学会  

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    Country:Japan

  10. 奨励賞[組織部門]

    1991.10   日本金属学会  

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    Country:Japan

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Papers 103

  1. Artificial intelligence inspired design of non-isothermal aging for gamma-gamma ' two-phase, Ni-Al alloys Reviewed

      Vol. 13 ( 1 )   2023.8

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1038/s41598-023-39589-2

    Web of Science

    PubMed

  2. Virtual heat treatment for y-y' two-phase Ni-Al alloy on the materials Integration system, MInt Reviewed

      Vol. 226   page: 111631   2023.2

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.matdes.2023.111631

    Web of Science

  3. CALPHAD-linked analysis of grain boundary segregation and phase-field simulation of solute-drag effect in multicomponent magnesium alloys Reviewed

    Matsuoka, Y; Bian, MZ; Tsukada, Y; Chino, Y; Koyama, T

    COMPUTATIONAL MATERIALS SCIENCE   Vol. 234   2024.2

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.commatsci.2024.112796

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  4. Slip system analysis of magnesium alloy AZ31B in warm compression by Visco-Plastic Self-Consistent simulation Reviewed

    Y.Matsuoka, M.Bian, Y.Tsukada, T.Koyama, Y.Chino

    Journal of The Japan Institute of Light Metals   Vol. 74 ( 2 ) page: 73 - 82   2024.2

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    Language:Japanese   Publishing type:Research paper (scientific journal)  

  5. マテリアルズインテグレーションシステムMIntを活用したγ'相析出型Ni基合金の仮想熱処理実験 Invited

    長田俊郎,小山敏幸,ブルガリビッチドミトリー,源聡,大澤真人,渡邊誠,川岸京子,出村雅彦

    金属   Vol. 93 ( 11 ) page: 974 - 982   2023.11

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    Language:Japanese   Publishing type:Research paper (scientific journal)  

  6. 多成分系合金の粒界偏析計算と組成設計への応用 Invited

    塚田祐貴, 松岡佑亮, 小山敏幸

    まてりあ   Vol. 62 ( 10 ) page: 673 - 679   2023.10

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    Authorship:Last author   Language:Japanese   Publishing type:Research paper (scientific journal)  

  7. Thermodynamic and kinetic assessments in Co-Cr-Mn system using diffusion data Reviewed

    JOURNAL OF MATERIALS SCIENCE   Vol. 58 ( 38 ) page: 15196 - 15218   2023.10

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1007/s10853-023-08927-0

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  8. Numerical Analysis of Precipitation Kinetics in Cu–Co–P Alloy Based on Dislocation Recovery Model and N Model Reviewed

    Jundai Goto, Toshiyuki Koyama, Kazushige Tajima

    J. Japan Inst. Met. Mater.   Vol. 87 ( 9 ) page: 258 - 266   2023.9

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    Language:Japanese   Publishing type:Research paper (scientific journal)  

  9. Insights into the microstructures and mechanical properties of magnesium-calcium-transition elements: A combined experimental and simulation study Reviewed

    ACTA MATERIALIA   Vol. 254   2023.8

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.actamat.2023.118958

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  10. Stabilization of Equiatomic Solutions Due to High-Entropy Effect Reviewed

    Abe, T; Han, KS; Goto, Y; Ohnuma, I; Koyama, T

    MATERIALS TRANSACTIONS   Vol. 64 ( 4 ) page: 877 - 884   2023

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    Authorship:Last author   Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.2320/matertrans.MT-M2022167

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  11. Numerical Analysis of Precipitation Kinetics in Cu-Co-P Alloy Based on Dislocation Recovery Model and N Model Reviewed

    JOURNAL OF THE JAPAN INSTITUTE OF METALS AND MATERIALS   Vol. 87 ( 9 ) page: 258 - 266   2023

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    Language:Japanese   Publishing type:Research paper (scientific journal)  

    DOI: 10.2320/jinstmet.J2023003

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  12. Improving the mechanical and corrosion properties of pure magnesium by parts-per-million-level alloying Reviewed

    Bian, MZ; Nakatsugawa, I; Matsuoka, Y; Huang, XS; Tsukada, Y; Koyama, T; Chino, Y

    ACTA MATERIALIA   Vol. 241   2022.12

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.actamat.2022.118393

    Web of Science

  13. A Generalized Framework of Multifidelity Max-Value Entropy Search Through Joint Entropy

    Takeno, S; Fukuoka, H; Tsukada, Y; Koyama, T; Shiga, M; Takeuchi, I; Karasuyama, M

    NEURAL COMPUTATION   Vol. 34 ( 10 ) page: 2145 - 2203   2022.9

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  14. Thermodynamic and atomic mobility assessment of the Co-Fe-Mn system

    Pendem, SP; Ueshima, N; Oikawa, K; Tsukada, Y; Koyama, T

    JOURNAL OF MATERIALS SCIENCE   Vol. 57 ( 33 ) page: 15999 - 16015   2022.9

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  15. Prediction of grain boundary chemistry in multicomponent alloys Reviewed

    M. Funamoto, Y. Matsuoka, Y. Tsukada, T. Koyama

    Science and Technology of Advanced Materials: Methods   Vol. 2   page: 322 - 333   2022.8

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    Authorship:Last author   Language:English   Publishing type:Research paper (scientific journal)  

    DOI: https://doi.org/10.1080/27660400.2022.2112915

  16. Effect of bending and tension deformation on the texture evolution and stretch formability of Mg-Zn-RE-Zr alloy

    Ishiguro, Y; Huang, XS; Tsukada, Y; Koyama, T; Chino, Y

    INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS   Vol. 29 ( 7 ) page: 1334 - 1342   2022.7

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    Language:Japanese  

    DOI: 10.1007/s12613-021-2398-8

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  17. Simulation-aided analysis on mechanical properties of dilute Mg-Zn-Ca alloy sheets

    Matsuoka, Y; Bian, MZ; Huang, XS; Tsukada, Y; Koyama, T; Chino, Y

    JOURNAL OF ALLOYS AND COMPOUNDS   Vol. 906   2022.6

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  18. Simple Approach for Evaluating the Possibility of Sluggish Diffusion in High-Entropy Alloys Reviewed

    Koyama, T; Tsukada, Y; Abe, T

    JOURNAL OF PHASE EQUILIBRIA AND DIFFUSION   Vol. 43 ( 1 ) page: 68 - 77   2022.2

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    Language:Japanese   Publishing type:Research paper (scientific journal)  

    DOI: 10.1007/s11669-022-00938-9

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  19. ハイエントロピー合金における拡散 Invited

    小山敏幸

    金属   Vol. 92 ( 1 ) page: 21 - 26   2022.1

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    Authorship:Lead author   Language:Japanese  

  20. Nd-Fe-B磁石用プロトタイプ熱力学データベースの構築

    阿部太一, 森下政夫, Y. Chen, A. Saengdeejing, 橋本清, 小林能直, 大沼郁雄, 小山敏幸,広沢哲

    粉体および粉末冶金   Vol. 69   page: S52 - S62   2022.1

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    Language:Japanese   Publishing type:Research paper (scientific journal)  

    DOI: https://doi.org/10.2497/jjspm.69.S52

  21. 計算熱力学と組織形成シミュレーションに基づくNd-Fe-B系磁石における粒界相の役割解明

    小山敏幸, 塚田祐貴, 阿部太一

    粉体および粉末冶金   Vol. 69 ( 69 ) page: S63 - S73   2022.1

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    Authorship:Lead author   Language:Japanese   Publishing type:Research paper (scientific journal)  

    DOI: https://doi.org/10.2497/jjspm.69.S63

  22. Development of a prototype thermodynamic database for Nd-Fe-B permanent magnets Invited Reviewed

    Abe, T; Morishita, M; Chen, Y; Saengdeejing, A; Hashimoto, K; Kobayashi, Y; Ohnuma, I; Koyama, T; Hirosawa, S

    SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS   Vol. 22 ( 1 ) page: 557 - 570   2021.12

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1080/14686996.2021.1936627

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  23. Adjoint model for estimating material parameters based on microstructure evolution during spinodal decomposition Reviewed

    Matsuura, Y; Tsukada, Y; Koyama, T

    PHYSICAL REVIEW MATERIALS   Vol. 5 ( 11 )   2021.11

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1103/PhysRevMaterials.5.113801

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  24. Ludwig-Soret effect formulated from the grain-boundary-phase model Reviewed

    Koyama, T; Tsukada, Y

    CALPHAD-COMPUTER COUPLING OF PHASE DIAGRAMS AND THERMOCHEMISTRY   Vol. 73   2021.6

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.calphad.2021.102269

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  25. Computational thermodynamics and microstructure simulations to understand the role of grain boundary phase in Nd-Fe-B hard magnets Invited Reviewed International journal

    Koyama, T; Tsukada, Y; Abe, T

    SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS   Vol. 22 ( 1 ) page: 1 - 13   2021.1

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1080/14686996.2020.1859339

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  26. Effect of Bending-Tension Deformation on Texture Evolution and Room Temperature Formability of AZ31 Alloy Sheet Rolled at High Temperature

    Ishiguro, Y; Huang, XS; Tsukada, Y; Koyama, T; Chino, Y

    JOURNAL OF THE JAPAN INSTITUTE OF METALS AND MATERIALS   Vol. 85 ( 4 ) page: 129 - 137   2021

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    Language:Japanese   Publishing type:Research paper (scientific journal)  

    DOI: 10.2320/jinstmet.JBW202001

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  27. Understanding the Anomalous Discontinuous Precipitation in Cu-Ni-X (X = Co,Fe) Alloys Based on CALPHAD Method and Phase-Field Simulation Reviewed

    Goto, J; Koyama, T; Tsukada, Y

    JOURNAL OF THE JAPAN INSTITUTE OF METALS AND MATERIALS   Vol. 85 ( 3 ) page: 89 - 94   2021

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    Language:Japanese   Publishing type:Research paper (scientific journal)  

    DOI: 10.2320/jinstmet.J2020037

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  28. Relationship between Calculated Segregation, Texture and Room Temperature Formability of Binary Magnesium Alloys

    Tachi, H; Suzuki, K; Huang, XS; Tsukada, Y; Koyama, T; Chino, Y

    JOURNAL OF THE JAPAN INSTITUTE OF METALS AND MATERIALS   Vol. 85 ( 10 ) page: 382 - 390   2021

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    Language:Japanese   Publishing type:Research paper (scientific journal)  

    DOI: 10.2320/jinstmet.J2021007

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  29. Effect of Rolling Temperature on Room Temperature Formability and Texture Formation of Mg-3 mass%Al-1 mass%Sn Alloy Sheet

    Fukuoka, H; Huang, XS; Suzuki, K; Tsukada, Y; Koyama, T; Chino, Y

    JOURNAL OF THE JAPAN INSTITUTE OF METALS AND MATERIALS   Vol. 85 ( 3 ) page: 120 - 127   2021

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    Language:Japanese   Publishing type:Research paper (scientific journal)  

    DOI: 10.2320/jinstmet.J2020055

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  30. Phase-field simulation of microstructure changes and crack propagation at Cu-Al wire bonding interface under high temperature circumstance Reviewed

    Funaya, T; Koyama, T

    IEEE 71ST ELECTRONIC COMPONENTS AND TECHNOLOGY CONFERENCE (ECTC 2021)     page: 1469 - 1474   2021

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    Language:English   Publishing type:Research paper (international conference proceedings)  

    DOI: 10.1109/ECTC32696.2021.00234

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  31. Cost-effective search for lower-error region in material parameter space using multifidelity Gaussian process modeling Reviewed International journal

    Takeno, S; Tsukada, Y; Fukuoka, H; Koyama, T; Shiga, M; Karasuyama, M

    PHYSICAL REVIEW MATERIALS   Vol. 4 ( 8 )   2020.8

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    Language:Japanese   Publishing type:Research paper (scientific journal)  

    DOI: 10.1103/PhysRevMaterials.4.083802

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  32. Phase-field study of the spinodal decomposition rate of β phase in oxygenadded Ti-Nb alloys Reviewed International journal

    Ishiguro, Y; Tsukada, Y; Koyama, T

    COMPUTATIONAL MATERIALS SCIENCE   Vol. 174   2020.3

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    Language:Japanese   Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.commatsci.2019.109471

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  33. Formation mechanism of Tb-rich shell in grain boundary diffusion processed Nd-Fe-B sintered magnets Reviewed International journal

    Kim, TH; Sasaki, TT; Koyama, T; Fujikawa, Y; Miwa, M; Enokido, Y; Ohkubo, T; Hono, K

    SCRIPTA MATERIALIA   Vol. 178   page: 433 - 437   2020.3

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.scriptamat.2019.12.002

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  34. Calculated Grain Boundary Segregation in Mg-Zn-Ca Alloys and Its Correlation to the Texture Formation and Formability of the Alloys Reviewed

    Ishiguro, Y; Huang, XS; Tsukada, Y; Koyama, T; Chino, Y

    JOURNAL OF THE JAPAN INSTITUTE OF METALS AND MATERIALS   Vol. 84 ( 10 ) page: 318 - 325   2020

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    Language:Japanese   Publishing type:Research paper (scientific journal)  

    DOI: 10.2320/jinstmet.J2020020

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  35. Development of Microstructure Simulation System in SIP-Materials Integration Projects Invited Reviewed International journal

    Koyama, T; Ohno, M; Yamanaka, A; Kasuya, T; Tsukamoto, S

    MATERIALS TRANSACTIONS   Vol. 61 ( 11 ) page: 2047 - 2051   2020

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    Language:Japanese   Publishing type:Research paper (scientific journal)  

    DOI: 10.2320/matertrans.MT-MA2020001

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  36. Solidification analysis by non-equilibrium phase field model using thermodynamics data estimated by machine learning Reviewed International journal

    Nomoto, S; Wakameda, H; Segawa, M; Yamanaka, A; Koyama, T

    MODELLING AND SIMULATION IN MATERIALS SCIENCE AND ENGINEERING   Vol. 27 ( 8 )   2019.12

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    Language:Japanese   Publishing type:Research paper (scientific journal)  

    DOI: 10.1088/1361-651X/ab3379

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  37. Estimation of material parameters based on precipitate shape: efficient identification of low-error region with Gaussian process modeling Reviewed International journal

    Tsukada, Y; Takeno, S; Karasuyama, M; Fukuoka, H; Shiga, M; Koyama, T

    SCIENTIFIC REPORTS   Vol. 9   2019.10

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    Language:Japanese   Publishing type:Research paper (scientific journal)  

    DOI: 10.1038/s41598-019-52138-0

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  38. Phase-field Simulation of the Effect of Interphase Boundary Diffusion on Pearlite Transformation in Fe-C System Reviewed

    Mouri, M; Tsukada, Y; Koyama, T

    TETSU TO HAGANE-JOURNAL OF THE IRON AND STEEL INSTITUTE OF JAPAN   Vol. 105 ( 2 ) page: 183 - 191   2019.2

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    Language:Japanese   Publishing type:Research paper (scientific journal)  

    DOI: 10.2355/tetsutohagane.TETSU-2018-081

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  39. Effects of Bending and Tension Deformation on Texture Evolution and Room Temperature Formability of AZ31B Alloy Sheets Reviewed

    Noguchi, T; Suzuki, K; Huang, XS; Saito, N; Tsukada, Y; Koyama, T; Chino, Y

    JOURNAL OF THE JAPAN INSTITUTE OF METALS AND MATERIALS   Vol. 83 ( 6 ) page: 212 - 220   2019

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    Language:Japanese   Publishing type:Research paper (scientific journal)  

    DOI: 10.2320/jinstmet.J2019002

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  40. PHASE-FIELD SIMULATION AND MACHINE LEARNING FOR PREDICTING RAFTING KINETICS IN NI-BASED SUPERALLOYS

    Matsuoka, Y; Tsukada, Y; Koyama, T

    JOINT EPRI - 123HIMAT INTERNATIONAL CONFERENCE ON ADVANCES IN HIGH-TEMPERATURE MATERIALS, 2019     page: 496 - 505   2019

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  41. Phase-field simulation of spinodal decomposition and its effect on stress-induced martensitic transformation in Ti-Nb-O alloys

    Ishiguro Yuya, Tsukada Yuhki, Koyama Toshiyuki

    COMPUTATIONAL MATERIALS SCIENCE   Vol. 151   page: 222 - 230   2018.8

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.commatsci.2018.05.003

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  42. Effect of Cr Content on Softening during Aging in High Cr Ferritic Heat Resistant Steel

    Miki Kazuhiro, Azuma Tsukasa, Murata Yoshinori, Koyama Toshiyuki

    TETSU TO HAGANE-JOURNAL OF THE IRON AND STEEL INSTITUTE OF JAPAN   Vol. 104 ( 7 ) page: 377 - 384   2018.7

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.2355/tetsutohagane.TETSU-2017-102

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  43. Phase-field modeling of stress generation in polycrystalline LiCoO2

    Yamakawa Shunsuke, Nagasako Naoyuki, Yarnasaki Hisatsugu, Koyama Toshiyuki, Asahi Ryoji

    SOLID STATE IONICS   Vol. 319   page: 209 - 217   2018.6

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.ssi.2018.02.013

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  44. 低炭素鋼のミクロ組織制御のためのフェーズフィールドシミュレーションと機械学習 Invited

    塚田祐貴, 小山敏幸

    化学工業   Vol. 69   page: 65-69   2018

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    Language:Japanese  

  45. Effects of Calcium Concentration on Room Temperature Formability and Damping Properties of Rolled Mg-Ca Alloys

    Noguchi Tomoyuki, Suzuki Kazutaka, Huang Xinsheng, Saito Naobumi, Tsukada Yuhki, Koyama Toshiyuki, Chino Yasumasa

    JOURNAL OF THE JAPAN INSTITUTE OF METALS   Vol. 82 ( 7 ) page: 249 - 255   2018

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    Language:Japanese   Publishing type:Research paper (scientific journal)  

    DOI: 10.2320/jinstmet.J2018007

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  46. 高Crフェライト系耐熱鋼における時効中の軟化に及ぼすCr含有量の影響 Reviewed

    三木一宏,東司,村田純教,小山敏幸

    鉄と鋼   Vol. 104 ( 7 ) page: 377-384   2018

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  47. フェーズフィールド法と特性計算の新潮流 Invited

    小山敏幸

    特殊鋼   Vol. 66 ( 7 ) page: 36-39   2017.7

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    Authorship:Lead author   Language:Japanese   Publishing type:Research paper (bulletin of university, research institution)  

  48. Phase-field simulation of rafting kinetics in a nickel-based single crystal superalloy

    Tsukada Yuhki, Koyama Toshiyuki, Kubota Fuminori, Murata Yoshinori, Kondo Yoshihiro

    INTERMETALLICS   Vol. 85   page: 187 - 196   2017.6

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.intermet.2017.02.017

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  49. Phase-field simulation of rafting kinetics in a nickel-based single crystal superalloy Reviewed

    Y. Tsukada, T. Koyama, F. Kubota, Y. Murata, Y. Kondo

    Intermetallics   Vol. 85   page: 187-196   2017

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  50. ネオジム磁石の粒界相形成に対するフェーズフィールドシミュレーション Invited Reviewed

    小山敏幸, 塚田祐貴, 阿部太一, 小林能直

    日本金属学会誌   Vol. 81   page: 43-48   2017

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    Authorship:Lead author   Language:Japanese   Publishing type:Research paper (scientific journal)  

  51. Phase-Field Simulation on the Formation of Grain Boundary Phase in Neodymium Hard Magnet Invited Reviewed

    Koyama, T; Tsukada, Y; Abe, T; Kobayashi, Y

    JOURNAL OF THE JAPAN INSTITUTE OF METALS AND MATERIALS   Vol. 81 ( 1 ) page: 43 - 48   2017

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    Language:Japanese   Publishing type:Research paper (scientific journal)  

    DOI: 10.2320/jinstmet.JA201603

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  52. Simulation of dislocation recovery in lath martensite steels using the phase-field method Reviewed

    S. Furukawa, H. Ihara, Y. Murata, Y. Tsukada, T. Koyama

    Computational Materials Science   Vol. 119   page: 108-113   2016

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  53. Data assimilation for massive autonomous systems based on a second-order adjoint method Reviewed

    Ito, H. Nagao, A. Yamanaka, Y. Tsukada, T. Koyama, M. Kano, J. Inoue

    Physical Review E   Vol. 94   page: 043307   2016

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  54. Phase-field Simulation of Habit Plane Formation during Martensitic Transformation in Low-carbon Steels Reviewed

    Yuhki Ysukada, Yasuhiro Kojima, Toshiyuki Koyama, Yoshinori Murata

    ISIJ International   Vol. 55 ( 11 ) page: 2455–2462   2015.11

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.2355/isijinternational.ISIJINT-2015-039

  55. Phase-Field Modelling on the Formation Process of LPSO Structure in Mg-Y-Zn System

    Koyama Toshiyuki, Tsukada Yuhki, Narita Keisuke

    MATERIALS TRANSACTIONS   Vol. 56 ( 7 ) page: 937-942   2015

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    DOI: 10.2320/matertrans.MH201414

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  56. Morphology of gamma ' Precipitate in NKH71 Nickel Based Superalloy Depending on Heat Treatment

    Takeshita Takaoki, Murata Yoshinori, Miura Nobuhiro, Kondo Yoshihiro, Tsukada Yuhki, Koyama Toshiyuki

    JOURNAL OF THE JAPAN INSTITUTE OF METALS   Vol. 79 ( 4 ) page: 203-209   2015

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    DOI: 10.2320/jinstmet.J2014049

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  57. Phase-field simulation of the stability of reaction phases at UO2/β-Zr interface Reviewed

    Yuki Nishida, Yuhki Tsukada, Toshiyuki Koyama, Masaki Kurata

    Journal of Nuclear Materials   Vol. 466   page: 551-559   2015

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    DOI: 10.1016/j.jnucmat.2015.08.041

  58. Effect of microstructure on discharge properties of polycrystalline LiCoO2

    Yamakawa Shunsuke, Yamasaki Hisatsugu, Koyama Toshiyuki, Asahi Ryoji

    SOLID STATE IONICS   Vol. 262   page: 56-60   2014.9

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    DOI: 10.1016/j.ssi.2013.10.011

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  59. Equilibrium shape of isolated precipitates in the alpha-Mg phase

    Tsukada Yuhki, Beniya Yuki, Koyama Toshiyuki

    JOURNAL OF ALLOYS AND COMPOUNDS   Vol. 603   page: 65-74   2014.8

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    DOI: 10.1016/j.jallcom.2014.03.044

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  60. Surface segregations in platinum-based alloy nanoparticles

    Yamakawa Shunsuke, Asahi Ryoji, Koyama Toshiyuki

    SURFACE SCIENCE   Vol. 622   page: 65-70   2014.4

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    DOI: 10.1016/j.susc.2013.12.008

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  61. Estimation of gamma/gamma ' diffusion mobility and three-dimensional phase-field simulation of rafting in a commercial nickel-based superalloy

    Tsukada Yuhki, Koyama Toshiyuki, Murata Yoshinori, Miura Nobuhiro, Kondo Yoshihiro

    COMPUTATIONAL MATERIALS SCIENCE   Vol. 83   page: 371-374   2014.2

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    DOI: 10.1016/j.commatsci.2013.11.028

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  62. Phase-Field Modeling of Phase Transformations in Platinum-Based Alloy Nanoparticles

    Yamakawa Shunsuke, Asahi Ryoji, Koyama Toshiyuki

    MATERIALS TRANSACTIONS   Vol. 54 ( 8 ) page: 1242-1249   2013.8

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    DOI: 10.2320/matertrans.ME201304

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  63. Elasto-plastic phase-field simulation of martensitic transformation in lath martensite steels

    Cong Zhenhua, Murata Yoshinori, Tsukada Yuhki, Koyama Toshiyuki

    PHILOSOPHICAL MAGAZINE   Vol. 93 ( 14 ) page: 1739-1747   2013.5

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    DOI: 10.1080/14786435.2012.754111

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  64. Phase-Field Simulation of Spinodal Decomposition on Metastable Hexagonal Close-Packed Phase in Magnesium-Yttrium-Zinc Alloy

    Narita Keisuke, Koyama Toshiyuki, Tsukada Yuhki

    MATERIALS TRANSACTIONS   Vol. 54 ( 5 ) page: 661-667   2013.5

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    DOI: 10.2320/matertrans.MI201212

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  65. Numerical study of Li diffusion in polycrystalline LiCoO2

    Yamakawa Shunsuke, Yamasaki Hisatsugu, Koyama Toshiyuki, Asahi Ryoji

    JOURNAL OF POWER SOURCES   Vol. 223   page: 199-205   2013.2

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    DOI: 10.1016/j.jpowsour.2012.09.055

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  66. Phase Field Simulation of the Sub-Block Microstructure in Lath Martensitic Steels

    Cong Zhenhua, Murata Yoshinori, Tsukada Yuhki, Koyama Toshiyuki

    MATERIALS TRANSACTIONS   Vol. 53 ( 10 ) page: 1822-1825   2012.10

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    DOI: 10.2320/matertrans.M2012250

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  67. Prediction of the Maximum Dislocation Density in Lath Martensitic Steel by Elasto-Plastic Phase-Field Method

    Cong Zhenhua, Murata Yoshinori, Tsukada Yuhki, Koyama Toshiyuki

    MATERIALS TRANSACTIONS   Vol. 53 ( 9 ) page: 1598-1603   2012.9

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    DOI: 10.2320/matertrans.M2012067

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  68. Analyses of the Metastable hcp Phase Separation in Mg-Y-Zn Alloy on the Basis of the Phase-Field Method

    Narita Keisuke, Koyama Toshiyuki, Tsukada Yuhki

    JOURNAL OF THE JAPAN INSTITUTE OF METALS   Vol. 76 ( 8 ) page: 475-481   2012.8

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  69. Coupled Analysis of Microstructure Evolution with Creep Deformation in Nickel-Based Superalloys by the Phase-Field Method

    Tsukada Yuhki, Murata Yoshinori, Koyama Toshiyuki, Miura Nobuhiro, Kondo Yoshihiro

    SUPERALLOYS 2012     page: 111-119   2012

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  70. Phase Field Simulation of the Collapse of the Rafted Structure in Ni-Based Superalloys

    Tanimoto Toshiya, Tsukada Yuhki, Murata Yoshinori, Koyama Toshiyuki

    DIFFUSION IN SOLIDS AND LIQUIDS VII   Vol. 326-328   page: 446-451   2012

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    DOI: 10.4028/www.scientific.net/DDF.326-328.446

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  71. Image-based Calculation of Stress-strain Curve of the Two-phase Microstructure on the Basis of the Modified Secant Method

    Koyama Toshiyuki

    ISIJ INTERNATIONAL   Vol. 52 ( 4 ) page: 723-728   2012

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  72. Creep deformation and rafting in nickel-based superalloys simulated by the phase-field method using classical flow and creep theories

    Tsukada Yuhki, Murata Yoshinori, Koyama Toshiyuki, Miura Nobuhiro, Kondo Yoshihiro

    ACTA MATERIALIA   Vol. 59 ( 16 ) page: 6378-6386   2011.9

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    DOI: 10.1016/j.actamat.2011.06.050

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  73. Thermodynamic modeling of the LiCoO2-CoO2 pseudo-binary system

    Abe Taichi, Koyama Toshiyuki

    CALPHAD-COMPUTER COUPLING OF PHASE DIAGRAMS AND THERMOCHEMISTRY   Vol. 35 ( 2 ) page: 209-218   2011.6

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    DOI: 10.1016/j.calphad.2011.02.006

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  74. Calculation of Stress-Strain Curve of the Two-phase Mixture Including Ellipsoidal Inclusion on the Basis of the Modified Secant Method

    Koyama Toshiyuki

    TETSU TO HAGANE-JOURNAL OF THE IRON AND STEEL INSTITUTE OF JAPAN   Vol. 97 ( 4 ) page: 212-220   2011.4

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  75. Formation mechanism of the hierarchic structure in the lath martensite phase in steels

    Iwashita Kazuhiro, Murata Yoshinori, Tsukada Yuhki, Koyama Toshiyuki

    PHILOSOPHICAL MAGAZINE   Vol. 91 ( 35 ) page: 4495-4513   2011

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    DOI: 10.1080/14786435.2011.610763

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  76. Precipitation of ferromagnetic phase induced by defect energies during creep deformation in Type 304 austenitic steel

    Tsukada Yuhki, Shiraki Atsuhiro, Murata Yoshinori, Takaya Shigeru, Koyama Toshiyuki, Morinaga Masahiko

    JOURNAL OF NUCLEAR MATERIALS   Vol. 401 ( 1-3 ) page: 13-16   2010.6

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    DOI: 10.1016/j.jnucmat.2010.03.013

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  77. Phase-field simulation of nucleation and growth of M23C6 carbide and ferromagnetic phases during creep deformation in Type 304 steel

    Tsukada Yuhki, Shiraki Atsuhiro, Murata Yoshinori, Takaya Shigeru, Koyama Toshiyuki, Morinaga Masahiko

    JOURNAL OF NUCLEAR MATERIALS   Vol. 401 ( 1-3 ) page: 154-158   2010.6

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    DOI: 10.1016/j.jnucmat.2010.04.017

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  78. Phase-field simulation of gamma(A1) + gamma '(L1(2)) + gamma ''(D0(22)) three-phase microstructure formation in Ni-base superalloys

    Koyama Toshiyuki

    INTERNATIONAL JOURNAL OF MATERIALS RESEARCH   Vol. 101 ( 4 ) page: 527-533   2010.4

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.3139/146.110306

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  79. Phase-Field Simulation on Phase Transformation during Creep Deformation in Type 304 Steel

    Tsukada Yuhki, Shiraki Atsuhiro, Murata Yoshinori, Takaya Shigeru, Koyama Toshiyuki, Morinaga Masahiko

    PRICM 7, PTS 1-3   Vol. 654-656   page: 492-495   2010

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    DOI: 10.4028/www.scientific.net/MSF.654-656.492

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  80. Calculation of Stress-Strain Curve of Two-Phase Microstructure on the Basis of the Extended Secant Method

    Koyama Toshiyuki, Onodera Hidehiro

    THERMEC 2009, PTS 1-4   Vol. 638-642   page: 3325-3330   2010

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    DOI: 10.4028/www.scientific.net/MSF.638-642.3325

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  81. Stress Dependence of Microstructural Evolution in Heat Resistant Steels

    Murata Yoshinori, Saoto Yoshihiro, Tsukada Yuhki, Koyama Toshiyuki, Morinaga Masahiko, Sasaki Yasutoshi, Hasegawa Yasushi

    PRICM 7, PTS 1-3   Vol. 654-656   page: 190-193   2010

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    DOI: 10.4028/www.scientific.net/MSF.654-656.190

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  82. Phase-Field Simulation on Coarsening of the gamma ' Phase Particles in Ni-Based Superalloys Considering Elastic Inhomogeneity

    Tsukada Yuhki, Murata Yoshinori, Koyama Toshiyuki, Morinaga Masahiko

    DIFFUSION IN SOLIDS AND LIQUIDS V, PTS 1 AND 2   Vol. 297-301   page: 376-383   2010

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    DOI: 10.4028/www.scientific.net/DDF.297-301.376

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  83. Simulation of Microstructural Evolution Based on the Phase-Field Method and Its Applications to Material Development

    Koyama Toshiyuki

    JOURNAL OF THE JAPAN INSTITUTE OF METALS   Vol. 73 ( 12 ) page: 891-905   2009.12

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  84. Classical and Hybrid Density-Functional/Classical Molecular Dynamics Study of Dislocation Core in Alumina Ceramic

    Tsuruta Kenji, Koyama Toshiyuki, Ogata Shuji

    MATERIALS TRANSACTIONS   Vol. 50 ( 5 ) page: 1015-1018   2009.5

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.2320/matertrans.MC200833

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  85. Phase-Field Simulation of the Effect of Elastic Inhomogeneity on Microstructure Evolution in Ni-Based Superalloys

    Tsukada Yuhki, Murata Yoshinori, Koyama Toshiyuki, Morinaga Masahiko

    MATERIALS TRANSACTIONS   Vol. 50 ( 4 ) page: 744-748   2009.4

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.2320/matertrans.MBW200826

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  86. Diffusion of Re and Ru in the gamma' phase of Ni based alloys

    Mabruri Efendi, Sakurai Shingo, Murata Yoshinori, Koyama Toshiyuki, Morinaga Masahiko

    MATERIALS TRANSACTIONS   Vol. 49 ( 6 ) page: 1441-1445   2008.6

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    DOI: 10.2320/matertrans.MRA2007632

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  87. Diffusion and gamma ' phase coarsening kinetics in ruthenium containing nickel based alloys

    Mabruri Efendi, Sakurai Shingo, Murata Yoshinori, Koyama Toshiyuki, Morinaga Masahiko

    MATERIALS TRANSACTIONS   Vol. 49 ( 4 ) page: 792-799   2008.4

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.2320/matertrans.MRA2007283

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  88. Phase-field simulation on the formation and collapse processes of the rafted structure in Ni-based superalloys

    Tsukada Yuhki, Murata Yoshinori, Koyama Toshiyuki, Morinaga Masahiko

    MATERIALS TRANSACTIONS   Vol. 49 ( 3 ) page: 484-488   2008.3

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.2320/matertrans.MBW200709

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  89. Interdiffusion of refractory elements in Fe-Cr-X (X-Mo, W) and Fe-Mo-W ternary iron alloys

    Takeda Koutarou, Yamashita Kouji, Murata Yoshinori, Koyama Toshiyuki, Morinaga Masahiko

    MATERIALS TRANSACTIONS   Vol. 49 ( 3 ) page: 479-483   2008.3

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.2320/matertrans.MBW200706

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  90. Cross interdiffusion coefficients in nickel- and iron-based ternary alloys

    Murata Yoshinori, Sakurai Shingo, Mabruri Efendi, Koyama Toshiyuki, Morinaga Masahiko

    DIFFUSION IN SOLIDS AND LIQUIDS III   Vol. 273-276   page: 419-424   2008

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  91. Diffusion of refractory elements in ternary iron alloys

    Yamashita Kouji, Kunieda Tomonori, Takeda Koutarou, Murata Yoshinori, Koyama Toshiyuki, Morinaga Masahiko

    DIFFUSION IN SOLIDS AND LIQUIDS III   Vol. 273-276   page: 746-751   2008

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  92. Diffusion of refractory elements in Ni-X-Y (X, Y : Co, Re, Ru, W) ternary alloys

    Sakurai Shingo, Mabruri Efendi, Murata Yoshinori, Koyama Toshiyuki, Morinaga Masahiko

    DIFFUSION IN SOLIDS AND LIQUIDS III   Vol. 273-276   page: 572-576   2008

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  93. Phase-field modeling of microstructure evolutions in magnetic materials

    Koyama Toshiyuki

    SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS   Vol. 9 ( 1 )   2008

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1088/1468-6996/9/1/013006

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  94. Interdiffusion in Ni-Co-Re and Ni-Co-Ru systems

    Mabruri Efendi, Sakurai Shingo, Murata Yoshinori, Koyama Toshiyuki, Morinaga Masahiko

    MATERIALS TRANSACTIONS   Vol. 48 ( 10 ) page: 2718-2723   2007.10

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    DOI: 10.2320/matertrans.MRA2007116

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  95. Phase-field simulation of dragging of liquid Bi particles during the thermally activated migration of grain boundaries in the Al-Bi system Reviewed

    Farjami Susan, Koyama Toshiyuki, Kainuma Ryosuke, Ishida Kiyohito

    SCRIPTA MATERIALIA   Vol. 56 ( 5 ) page: 433-436   2007.3

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    DOI: 10.1016/j.scriptamat.2006.10.005

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  96. Phase-field modeling of the microstructure evolutions in Fe-Cu base alloys

    Koyama Toshiyuki, Onodera Hidehiro

    THERMEC 2006, Pts 1-5   Vol. 539-543   page: 2383-2388   2007

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  97. Estimation of the System Free Energy of the Lath Martensite Phase in High Cr Ferritic Steels

    Kunieda Tomonori, Akada Kensuke, Murata Yoshinori, Koyama Toshiyuki, Morinaga Masahiko

    THERMEC 2006 SUPPLEMENT   Vol. 15-17   page: 690-695   2007

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    DOI: 10.4028/www.scientific.net/AMR.15-17.690

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  98. Phase-field simulation of gamma ''(D0(22)) precipitation in Ni base superalloys

    Koyama Toshiyuki, Onodera Hidehiro

    PRICM 6: SIXTH PACIFIC RIM INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS AND PROCESSING, PTS 1-3   Vol. 561-565   page: 2287-2292   2007

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  99. Effect of rhenium addition on tungsten diffusivity in iron-chromium alloys (vo 47, pg 2106, 2006) Reviewed

    Kunieda Tomonori, Yamashita Koji, Murata Yoshinori, Koyama Toshiyuki, Morinaga Masahiko

    MATERIALS TRANSACTIONS   Vol. 47 ( 11 ) page: 2888-2888   2006.11

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  100. Phase-field simulation of phase transformation in Fe-Cu-Mn-Ni quaternary alloy Reviewed

    Koyama Toshiyuki, Hashimoto Kiyoshi, Onodera Hidehiro

    MATERIALS TRANSACTIONS   Vol. 47 ( 11 ) page: 2765-2772   2006.11

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    DOI: 10.2320/matertrans.47.2765

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  101. Effect of rhenium addition on tungsten diffusivity in iron-chromium alloys

    Kunieda Tomonori, Yamashita Koji, Murata Yoshinori, Koyama Toshiyuki, Morinaga Masahiko

    MATERIALS TRANSACTIONS   Vol. 47 ( 8 ) page: 2106-2108   2006.8

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    DOI: 10.2320/matertrans.47.2106

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  102. Phase-field modeling of structural elongation and alignment of (alpha plus gamma) microstructure in Fe-0.4C alloy during thermomagnetic treatment Reviewed

    Koyama Toshiyuki, Onodera Hidehiro

    ISIJ INTERNATIONAL   Vol. 46 ( 9 ) page: 1277-1282   2006

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  103. Computer simulation of phase decomposition in Sm-Co-Cu magnetic alloy based on the phase-field method

    Koyama Toshiyuki, Onodera Hidehiro

    Solid-Solid Phase Transformations in Inorganic Material 2005, Vol 2     page: 723-728   2005

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Books 8

  1. ハイエントロピー合金

    小山敏幸( Role: Joint author ,  1.1節, 2,1節, 2.3節)

    内田老鶴圃  2020.5  ( ISBN:9784753651375

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    Total pages:279   Responsible for pages:1-5, 29-35, 43-47   Language:Japanese Book type:Scholarly book

  2. 材料設計計算工学(計算組織学編) [増補新版] Reviewed

    小山敏幸( Role: Sole author)

    内田老鶴圃  2019.12  ( ISBN:9784753659401

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    Total pages:170   Language:Japanese Book type:Scholarly book

  3. しなやかで強い鉄鋼材料―革新的構造用金属材料の開発最前線

    鳥塚史郎, 高木節雄 他( Role: Sole author)

    エヌ・ティー・エス   2016.6  ( ISBN:978-4860434533

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    Language:Japanese

  4. 省/脱Dyネオジム磁石と新規永久磁石の開発

    広沢哲他( Role: Joint author)

    シーエムシー出版  2015.6  ( ISBN:978-4-7813-1072-5

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    Language:Japanese

  5. 3D材料組織・特性解析の基礎と応用 : シリアルセクショニング実験およびフェーズフィールド法からのアプローチ

    新家 光雄, 足立 吉隆, 小山 敏幸( Role: Joint author)

    内田老鶴圃  2014  ( ISBN:9784753655625

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    Language:Japanese

    CiNii Books

  6. フェーズフィールド法入門

    小山 敏幸, 高木 知弘( Role: Joint author)

    丸善出版  2013  ( ISBN:9784621086582

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    Language:Japanese

    CiNii Books

  7. 材料組織弾性学と組織形成 : フェーズフィールド微視的弾性論の基礎と応用

    小山 敏幸, 塚田 祐貴( Role: Joint author)

    内田老鶴圃  2012  ( ISBN:9784753655618

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    Language:Japanese

    CiNii Books

  8. 材料設計計算工学(計算組織学編)

    小山 敏幸( Role: Joint author)

    内田老鶴圃  2011  ( ISBN:9784753656400

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    Language:Japanese

    CiNii Books

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MISC 1

  1. PHASE-FIELD SIMULATION AND MACHINE LEARNING FOR PREDICTING RAFTING KINETICS IN NI-BASED SUPERALLOYS Reviewed International journal

    Matsuoka Yusuke, Tsukada Yuhki, Koyama Toshiyuki

    JOINT EPRI - 123HIMAT INTERNATIONAL CONFERENCE ON ADVANCES IN HIGH-TEMPERATURE MATERIALS, 2019     page: 496 - 505   2019

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    Authorship:Last author   Language:English   Publishing type:Research paper, summary (international conference)  

    Web of Science

Presentations 101

  1. Mg合金における溶質クラスター形成および転位への溶質元素偏析の連成解析

    中村太一、塚田祐貴、小山敏幸

    日本金属学会2024年春期講演大会  2024.3.15  日本金属学会

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    Event date: 2024.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:東京  

  2. 転位回復モデルおよびNモデルに基づくCu–Co–P合金の析出挙動に対する数値解析

    後藤潤大、小山敏幸、田島一成

    日本金属学会2024年春期講演大会  2024.3.15  日本金属学会

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    Event date: 2024.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:東京  

  3. Nd-Fe-B焼結磁石のミクロ組織を予測するための液相焼結フェーズフィールドモデリング

    石井秋光、小山敏幸、阿部太一、大出真知子

    日本金属学会2024年春期講演大会  2024.3.15  日本金属学会

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    Event date: 2024.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:東京  

  4. JMAK理論の拡張と自動微分による逆問題への適用

    吉田和弘、塚田祐貴、小山敏幸

    日本金属学会2024年春期講演大会  2024.3.12  日本金属学会

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    Event date: 2024.3

    Language:Japanese   Presentation type:Poster presentation  

    Venue:東京  

  5. 自動微分を活用した複相組織における材料パラメータの逆問題解析

    川本玲央、塚田祐貴、小山敏幸

    日本金属学会2024年春期講演大会  2024.3.12  日本金属学会

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    Event date: 2024.3

    Language:Japanese   Presentation type:Poster presentation  

    Venue:東京  

  6. 鋼のマルテンサイト変態における内部応力場のフェーズフィールド解析

    吉田昌雄、塚田祐貴、小山敏幸

    日本金属学会2024年春期講演大会  2024.3.13  日本金属学会

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    Event date: 2024.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:東京  

  7. CALPHAD法とフェーズフィールド法 Invited

    小山敏幸

    ワークショップ「合金状態図研究の展望と挑戦」  2024.3.5  (公財)豊田理化学研究所

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    Event date: 2024.3

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:名古屋   Country:Japan  

  8. Accelerating estimation of thermodynamic and atomic mobility parameters using experimental data Invited International conference

    Y. Tsukada, T. Koyama

    MRM2023  2023.12.12  MRS-J

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    Event date: 2023.12

    Language:English   Presentation type:Oral presentation (invited, special)  

    Country:Japan  

  9. フォッカー・プランク方程式へのアジョイント法の適用

    神谷航平, 塚田祐貴, 小山敏幸

    日本機械学会第36回計算力学講演会  2023.10.25  日本機械学会

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    Event date: 2023.10

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:愛知県豊橋市   Country:Japan  

  10. 非晶質材料における組織ドメインダイナミクスシミュレーション

    長尾一生, 塚田祐貴, 小山敏幸

    日本機械学会第36回計算力学講演会  2023.10.25  日本機械学会

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    Event date: 2023.10

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:愛知県豊橋市   Country:Japan  

  11. Identification of multi-phase-field model parameters using time-series data of concentration profile International conference

    S. Shiotani, Y. Tsukada, T. Koyama

    GALVATECH2023  2023.10.17  The Corrosion Science Society of Korea, Korean Institute of Metals and Materials

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    Event date: 2023.10

    Language:English   Presentation type:Oral presentation (general)  

    Venue:South   Country:Korea, Republic of  

  12. Fe-Zn合金における濃度プロファイルの時系列データを用いたマルチフェーズフィールドモデルのパラメータ推定

    塩谷俊佑、⼩⼭敏幸、塚⽥祐貴

    日本鉄鋼協会2023年秋季講演大会   2023.9.20  日本鉄鋼協会

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    Event date: 2023.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:富山  

  13. An Evaluation of AI-Discovered Non-Isothermal Aging Treatment Strategies for Enhancing 0.2% Proof Stress in Ni-Al Alloys with γ-γ' Microstructure Invited

    2023.9.21 

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    Event date: 2023.9

    Language:English   Presentation type:Oral presentation (general)  

  14. 熱力学計算で得られる粒界組成と316ステンレス鋼の降伏強度の関係

    林 けい、塚田祐貴、小山敏幸

    日本金属学会2023年秋期講演大会  2023.9.19  日本金属学会

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    Event date: 2023.9

    Language:Japanese   Presentation type:Poster presentation  

    Venue:富山  

  15. 不均一温度場における拡散現象のフェーズフィールド解析 Invited

    小山 敏幸

    日本金属学会2023年秋期講演大会   2023.9.20  日本金属学会

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    Event date: 2023.9

    Language:Japanese   Presentation type:Oral presentation (keynote)  

    Venue:富山  

  16. 発展方程式に基づく非線形パターン形成の起源解明 Invited

    小山 敏幸

    日本金属学会2023年秋期講演大会   2023.9.21  日本金属学会

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    Event date: 2023.9

    Language:Japanese   Presentation type:Oral presentation (keynote)  

    Venue:富山  

  17. フェーズフィールド解析によるFePt-C高密度磁気記録材料の組織形成最適化 Invited

    山内 薫、塚田祐貴、小山敏幸

    日本金属学会2023年秋期講演大会   2023.9.20  日本金属学会

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    Event date: 2023.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:富山  

  18. 自動微分を用いたCo-Mn拡散対プロファイルの解析 Invited

    櫻井一輝、松岡佑亮、塚田祐貴、小山敏幸

    日本金属学会2023年秋期講演大会   2023.9.22  日本金属学会

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    Event date: 2023.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:富山  

  19. 粒界偏析計算を活用したNi基超合金のクリープ破断強度予測 Invited

    粳田春菜、塚田祐貴、小山敏幸

    日本金属学会2023年秋期講演大会   2023.9.22  日本金属学会

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    Event date: 2023.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:富山  

  20. AZ31B合金とA5052合金の異種金属超音波接合における中間層の挿入が接合性に及ぼす影響 Invited

    常森駿太、松岡佑亮、Bian Mingzhe、⻩ 新ショウ、塚⽥祐貴、⼩⼭敏幸、千野靖正

    日本金属学会2023年秋期講演大会   2023.9.22  日本金属学会

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    Event date: 2023.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:富山  

  21. Mg-Ca二元系合金の組織および機械的性質に及ぼす遷移元素添加の影響 Invited

    ビャン ミンジェ、松岡佑亮、黄新胜、石黒雄也、塚田祐貴、小山敏幸、千野靖正

    日本金属学会2023年秋期講演大会   2023.9.22  日本金属学会

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    Event date: 2023.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:富山  

  22. EBSD観察と組織シミュレーションによるMg圧延板材の集合組織解析 Invited

    松岡佑亮、⻩新胜、Bian Mingzhe、塚⽥祐貴、⼩⼭敏幸、千野靖正

    日本金属学会2023年秋期講演大会   2023.9.22  日本金属学会

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    Event date: 2023.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:富山  

  23. Computational approach for predicting grain boundary chemistry and its application to alloy design Invited International conference

    Y. Tsukada, T. Koyama

    Thermec'2023  2023.7.7 

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    Event date: 2023.7

    Language:English   Presentation type:Oral presentation (invited, special)  

    Venue:Vienna   Country:Austria  

  24. 平衡論・速度論の基本原理からフェーズフィールド法の将来展望まで(DxMTの視点から) Invited

    小山敏幸

    日本金属学会 状態図・計算熱力学研究会 第4回研究会  2023.6.22  日本金属学会

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    Event date: 2023.6

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:オンライン   Country:Japan  

  25. フェーズフィールド法とデータ科学を活用した次世代材料設計 Invited

    小山敏幸

    Meet up Chubu 「インフォマティクス」  2023.6.8  中部経済産業局

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    Event date: 2023.6

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:名古屋   Country:Japan  

  26. 鉄鋼のマルテンサイト変態における転位密度変化と内部応力変化

    塚田祐貴, 山崎涼太, 小山敏幸

    日本計算工学会第28回計算工学講演会  2023.5.31  日本計算工学会

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    Event date: 2023.5 - 2023.6

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:つくば  

  27. 鉄鋼のマルテンサイト変態における転位密度変化と内部応力変化

    塚田祐貴、山崎涼太、小山敏幸

    日本計算工学会第28回計算工学講演会  2023.5.31  日本計算工学会

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    Event date: 2023.5 - 2023.6

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:茨城県つくば市   Country:Japan  

  28. 構成式のアナロジーとフェーズフィールド解析に基づく統合型複合材料設計 Invited

    小山敏幸

    日本金属学会2023年春期講演大会  2023.3.8  日本金属学会

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    Event date: 2023.3

    Language:Japanese   Presentation type:Oral presentation (keynote)  

    Venue:東京   Country:Japan  

  29. PPMレベルの合金化による純マグネシウムの機械的特性および腐食特性の改善

    邊明哲, 中津川勲, 松岡佑亮, 黄 新ショウ, 塚田祐貴, ⼩⼭ 敏幸, 千野靖正

    日本金属学会2023年春期講演大会  2023.3.9  日本金属学会

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    Event date: 2023.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:東京   Country:Japan  

  30. AZ31B合金と A5052合金の異種金属超音波接合における金属間化合物形成が接合性に及ぼす影響

    常森駿太,松岡佑亮,Bian Mingzhe,黄 新ショウ,塚田祐貴,小山敏幸, 千野靖正

    日本金属学会2023年春期講演大会  2023.3.9  日本金属学会

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    Event date: 2023.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:東京   Country:Japan  

  31. 自動微分を用いた拡散対プロファイルの解析

    櫻井一輝 松岡佑亮 塚田祐貴 小山敏幸

    日本金属学会2023年春期講演大会  2023.3.10  日本金属学会

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    Event date: 2023.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:東京   Country:Japan  

  32. Simple Approach for Evaluating the Possibility of Sluggish Diffusion in High-entropy Alloys Invited International conference

    T.Koyama, Y.Tsukada, T.Abe

    International Workshop on High Entropy Alloys  2023.2.15 

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    Event date: 2023.2

    Language:English   Presentation type:Oral presentation (invited, special)  

    Country:Japan  

  33. 拡散解析:基礎から最先端へ Invited

    梶原正憲, 小山敏幸

    金属学会セミナー(特別講座)  2022.10.7  日本金属学会

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    Event date: 2022.10

    Language:Japanese   Presentation type:Public lecture, seminar, tutorial, course, or other speech  

    Venue:オンライン開催   Country:Japan  

  34. Fe-C系のパーライト成長速度とγ/α界面形状に及ぼす炭素拡散経路の影響のフェーズフィールド解析

    鈴木弓景, 塚田祐貴, 小山敏幸

    日本金属学会2022年秋期講演大会  2022.9.21  日本金属学会

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    Event date: 2022.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:福岡   Country:Japan  

  35. セルフコンシステント・セカント法を用いた複合組織の力学特性解析

    是永琢斗, 塚田祐貴, 小山敏幸

    日本金属学会2022年秋期講演大会  2022.9.21  日本金属学会

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    Event date: 2022.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:福岡   Country:Japan  

  36. Fe-Zn合金の界面相形成に対するフェーズフィールド解析とアジョイント法への展開

    塩谷俊佑, 塚田祐貴, 小山敏幸

    日本鉄鋼協会第184回秋季講演大会  2022.9.21  日本鉄鋼協会

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    Event date: 2022.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:福岡   Country:Japan  

  37. 多結晶組織におけるラスマルテンサイト形成過程のフェーズフィールド解析

    山崎涼太, 塚田祐貴, 小山敏幸

    日本金属学会2022年秋期講演大会  2022.9.22  日本金属学会

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    Event date: 2022.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:福岡   Country:Japan  

  38. 温間圧縮下におけるAZ31B押出材の変形メカニズム解析

    松岡佑亮, Bian Mingzhe, 塚田祐貴, 小山敏幸, 千野靖正

    日本金属学会2022年秋期講演大会  2022.9.22  日本金属学会

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    Event date: 2022.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:福岡   Country:Japan  

  39. 析出核形成理論の逆磁区核形成への適用

    稲葉太郎, 塚田祐貴, 小山敏幸

    日本金属学会2022年秋期講演大会  2022.9.22  日本金属学会

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    Event date: 2022.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:福岡   Country:Japan  

  40. CALPHADデータベースを活用した多成分系合金の粒界偏析予測

    塚田祐貴, 舟本将崇, 松岡佑亮, 小山敏幸

    日本金属学会2022年秋期講演大会  2022.9.23  日本金属学会

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    Event date: 2022.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:福岡   Country:Japan  

  41. 多成分Ni基耐熱合金のγ’組織形成に対する工学的シミュレーション

    伊藤航亮, 小山敏幸, 塚田祐貴

    日本金属学会2022年春期講演大会  2022.3.17  日本金属学会

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    Event date: 2022.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:オンライン開催   Country:Japan  

  42. 粒界相モデルに基づく多成分系合金の粒界偏析予測

    塚田祐貴, 舟本将崇, 松岡佑亮, 小山敏幸

    日本鉄鋼協会第183回春季講演大会  2022.3.16  日本鉄鋼協会

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    Event date: 2022.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:オンライン開催   Country:Japan  

  43. KKT条件を考慮したアジョイント法によるフェーズフィールドモデルパラメータ推定

    松浦祐樹, 塚田祐貴, 小山敏幸

    日本金属学会2022年春期講演大会  2022.3.16  日本金属学会

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    Event date: 2022.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:オンライン開催   Country:Japan  

  44. 多成分系 Ni基耐熱合金の粒界偏析における構成元素間の関係

    松岡佑亮, 舟本将崇, 塚田祐貴, 小山敏幸

    日本金属学会2022年春期講演大会  2022.3.17  日本金属学会

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    Event date: 2022.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:オンライン開催   Country:Japan  

  45. Integrating computational model with microstructure data Invited International conference

    Y. Tsukada, T. Koyama

    Materials Research Meeting 2021  2021.12.15  MRS-J

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    Event date: 2021.12

    Language:English   Presentation type:Oral presentation (invited, special)  

    Venue:Yokohama   Country:Japan  

  46. Mg-Zn-Ca希薄合金圧延材の室温成形性と亜鉛濃度の関係解明

    松岡佑亮, 黄新ショウ, Bian Mingzhe, 塚田祐貴, 小山敏幸, 千野靖正

    軽金属学会第141回秋期大会  2021.11.13  軽金属学会

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    Event date: 2021.11

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:オンライン開催   Country:Japan  

  47. ハイエントロピー合金における遅い拡散の可能性に対する理論解析 Invited

    小山敏幸

    粉体粉末冶金協会2021年度秋季大会「金属ガラス・ナノ結晶材料および高エントロピー合金の基礎と応用に関する新たな展開」  粉体粉末冶金協会

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    Event date: 2021.11

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:オンライン開催   Country:Japan  

  48. ハイエントロピー合金における短範囲規則をどう理解するか? Invited

    小山敏幸, 塚田祐貴

    状態図・計算熱力学研究会 第2回研究会  2021.11.1  日本金属学会

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    Event date: 2021.11

    Language:Japanese  

    Venue:オンライン開催   Country:Japan  

  49. アジョイント法によるスピノーダル分解のフェーズフィールドモデルパラメータの推定

    松浦祐樹, 塚田祐貴, 小山敏幸

    日本機械学会第34回計算力学講演会  2021.9.22  日本機械学会

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    Event date: 2021.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:オンライン開催   Country:Japan  

  50. 連続冷却過程で形成されるTi-Nb-O合金のβ相相分離組織のマルテンサイト変態への影響

    宮原広行, 塚田祐貴, 小山敏幸

    日本金属学会2021年秋期講演大会  2021.9.17  日本金属学会

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    Event date: 2021.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:オンライン開催   Country:Japan  

  51. Mg-Zn-Ca希薄合金圧延材の室温成形性とその決定因子

    松岡佑亮, 黄新胜, Bian Mingzhe, 塚田祐貴, 小山敏幸, 千野靖正

    2021.9.16  日本金属学会

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    Event date: 2021.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:オンライン開催   Country:Japan  

  52. 鉄鋼のマルテンサイト変態における転位密度変化のフェーズフィールド解析

    山崎涼太, 塚田祐貴, 小山敏幸

    日本金属学会2021年秋期講演大会  2021.9.16  日本金属学会

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    Event date: 2021.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:オンライン開催   Country:Japan  

  53. アジョイント法による一般化KJMA式のパラメータ推定

    松浦祐樹, 小山敏幸, 塚田祐貴

    日本金属学会2021年秋期講演大会  2021.9.16  日本金属学会

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    Event date: 2021.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:オンライン開催   Country:Japan  

  54. フェーズフィールド法に基づく相分離シミュレーションと材料特性 Invited

    小山敏幸

    第25回高分子計算機科学研究会講座「理論・シミュレーションの基礎」  2021.6.16  高分子学会 高分子計算機科学研究会

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    Event date: 2021.6

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:オンライン開催   Country:Japan  

  55. 鉄鋼材料のパーライト変態に及ぼす炭素の異相界面拡散の影響

    毛利優斗, 塚田祐貴, 小山敏幸

    日本計算工学会第23回計算工学講演会 

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    Event date: 2018.6

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  56. フェーズフィールド法と機械学習による鉄鋼材料のミクロ組織予測

    塚田祐貴, 村井良洋, 小山敏幸

    日本計算工学会第23回計算工学講演会 

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    Event date: 2018.6

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  57. 材料の組織と力学特性の関係に対する計算科学的アプローチ

    清水睦博, 塚田祐貴, 小山敏幸

    日本計算工学会第23回計算工学講演会 

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    Event date: 2018.6

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  58. 強度・変形の記述子とプラストン Invited

    小山敏幸, 塚田祐貴

    日本金属学会2018年春期大会 

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    Event date: 2018.3

    Language:Japanese   Presentation type:Oral presentation (keynote)  

    Country:Japan  

  59. 高温クリープ解析と機械学習によるニッケル基超合金の材料パラメータ設計指針の理解

    河合大輔, 塚田祐貴, 小山敏幸

    日本金属学会2018年春期講演大会 

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    Event date: 2018.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  60. 材料設計計算工学と情報学の観点に基づく物性研究の展望 Invited

    小山敏幸, 塚田祐貴

    日本金属学会2018年春期大会 

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    Event date: 2018.3

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Country:Japan  

  61. 計算熱力学と計算組織学における情報学の活用

    小山敏幸

    日本鉄鋼協会第175回春季講演大会シンポジウム「鉄鋼インフォマティクス研究の最前線」 

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    Event date: 2018.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  62. Mg合金における板状析出物形成と析出硬化特性のフェーズフィールドシミュレーション

    小宮健太郎, 塚田祐貴, 小山敏幸

    日本金属学会2018年春期講演大会 

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    Event date: 2018.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  63. Y-Zr-O系におけるフラッシュ焼結機構に対する計算熱力学的議論

    川出隼也, 小山敏幸, 塚田祐貴

    日本金属学会2018年春期講演大会 

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    Event date: 2018.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  64. Ti-Nb-O系合金におけるスピノーダル分解とマルテンサイト変態のシミュレーション

    石黒雄也, 塚田祐貴, 小山敏幸

    日本金属学会2018年春期講演大会 

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    Event date: 2018.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  65. Phase-field simulation of nanodomain formation in Ti-Nb-O alloys International conference

    Y. Ishiguro, Y. Tsukada, T. Koyama

    TMS2018 147th Annual Meeting & Exhibition 

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    Event date: 2018.3

    Language:English   Presentation type:Oral presentation (general)  

    Country:United States  

  66. Phase-field simulation of nodule microstructure near grain boundaries in nickel-based alloys International conference

    Y. Tsukada, R. Oshima, T. Koyama, M. Yonemura

    TMS2018 147th Annual Meeting & Exhibition 

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    Event date: 2018.3

    Language:English   Presentation type:Oral presentation (general)  

    Country:United States  

  67. フェーズフィールド法による機能材料の組織・特性解析 Invited

    小山敏幸

    第165回電子セラミック・プロセス研究会 

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    Event date: 2018.2

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  68. スピノーダル分解 -その基礎から発展へ- Invited

    小山敏幸

    金属学会セミナー「状態図および相変態の基礎と応用 -計算工学の観点から-」 

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    Event date: 2018.1

    Language:Japanese   Presentation type:Public lecture, seminar, tutorial, course, or other speech  

    Country:Japan  

  69. 状態図・相変態の基盤と実践的ノウハウ Invited

    大沼郁雄, 阿部太一, 小山敏幸

    金属学会セミナー(特別講座) 

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    Event date: 2017.12

    Language:Japanese   Presentation type:Public lecture, seminar, tutorial, course, or other speech  

    Country:Japan  

  70. フェーズフィールド法による鉄鋼材料のマルテンサイト変態シミュレーション Invited

    塚田祐貴, 小山敏幸, 村田純教

    第27回日本MRS年次大会 

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    Event date: 2017.12

    Language:English   Presentation type:Oral presentation (invited, special)  

    Country:Japan  

  71. 計算熱力学および計算組織学の基礎から発展へ Invited

    小山敏幸

    日本鉄鋼協会北海道支部ノースフォーラム 

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    Event date: 2017.11

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Country:Japan  

  72. Phase-field simulation of the effect of yield stress on the martensitic transformation in low-carbon steels

    Y. Tsukada, E. Harata, T. Koyama

    The 5th International Symposium on Steel Science 

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    Event date: 2017.11

    Language:English   Presentation type:Poster presentation  

    Country:Japan  

  73. 鉄鋼材料における材料パラメータとマルテンサイト組織の関係

    村井良洋, 塚田祐貴, 小山敏幸

    日本機械学会第30回計算力学講演会 

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    Event date: 2017.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  74. フェーズフィールド法とアジョイント法に基づく材料パラメータ推定

    石戸大貴, 塚田祐貴, 小山敏幸

    日本機械学会第30回計算力学講演会 

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    Event date: 2017.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  75. AZ31B合金板材の集合組織形成及び成形性に及ぼす曲げ引張り加工の効果

    野口智之, 鈴木一孝, 黄新ショウ, 千野靖正, 塚田祐貴, 小山敏幸

    日本金属学会2017年秋期講演大会 

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    Event date: 2017.9 - 2917.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  76. データ科学と組織・特性計算を活用した応力-ひずみ曲線に及ぼす組織因子の定量化 Invited

    小山敏幸, 塚田祐貴

    日本金属学会2017年秋期大会 

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    Event date: 2017.9

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Country:Japan  

  77. マルテンサイト変態に及ぼす温度と降伏応力の影響

    原田絵美, 塚田祐貴, 小山敏幸, 村田純教

    日本鉄鋼協会第174回秋季講演大会 

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    Event date: 2017.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  78. 材料組織変化の観測データを活用した材料パラメータ推定法の構築

    塚田祐貴, 石戸大貴, 小山敏幸

    日本金属学会2017年秋期講演大会 

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    Event date: 2017.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  79. Mg合金析出相の形状データを活用した材料パラメータ推定

    福岡準史, 塚田祐貴, 小山敏幸

    日本金属学会2017年秋期講演大会 

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    Event date: 2017.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  80. フェーズフィールド法によるTi-Nb-O 系合金のナノドメイン形成と力学特性の解析 Invited

    石黒雄也, 塚田祐貴, 小山敏幸

    日本鉄鋼協会第174回秋季講演大会 シンポジウム「チタン合金の相変態研究の新たな展開Ⅱ」 

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    Event date: 2017.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  81. Phase-field simulation of size and morphology of lath martensite in steels International conference

    Y. Tsukada, E. Harata, T. Koyama, Y. Murata

    ICOMAT 2017 (International Conrference on Martensitic Transformation) 

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    Event date: 2017.7

    Language:English   Presentation type:Oral presentation (general)  

    Country:United States  

  82. ニッケル基合金におけるノジュール組織形成に及ぼす粒界易動度および粒界拡散の影響

    塚田祐貴, 大島亮太, 小山敏幸, 米村光治

    日本計算工学会第22回計算工学講演会 

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    Event date: 2017.5 - 2017.6

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  83. Ti-Nb-O系合金におけるナノドメイン形成と力学応答のフェーズフィールドシミュレーション

    石黒雄也, 塚田祐貴, 小山敏幸

    日本計算工学会第22回計算工学講演会 

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    Event date: 2017.5 - 2017.6

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  84. フェーズフィールド法に基づく熱電デバイスのトポロジー最適化

    川出隼也, 塚田祐貴, 小山敏幸

    日本計算工学会第22回計算工学講演会 

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    Event date: 2017.5 - 2017.6

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  85. 材料工学におけるスパース学習の重要性 Invited

    小山敏幸, 塚田祐貴

    日本金属学会シンポジウム「データサイエンスと材料研究開発」 

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    Event date: 2017.1

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Country:Japan  

  86. 3D phase-filed simulation of cluster-microstructure formation in Mg alloy

    K. Muramatsu, Y. Tsukada, T. Koyama

    International Symposium on Long-Period Stacking Ordered Structure and Its Related Materials 2016 

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    Event date: 2016.12

    Language:English   Presentation type:Poster presentation  

    Country:Japan  

  87. Phase-field simulation of the growth behaviour of reaction phases at UO2/β-Zr interface during heating process International conference

    T. Ishikawa, Y. Tsukada, T. Koyama, M. Kurata

    NuMat 2016 (The Nuclear Materials Conference) 

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    Event date: 2016.11

    Language:English   Presentation type:Oral presentation (general)  

    Country:France  

  88. Sensitivity analysis of microstructure factor on magnetic properties in Nd-Fe-B rare-earth alloy based on phase-field method and micromagnetics simulation coupled with information technology

    T. Koyama, Y. Tsukada

    The 9th Pacific Rim International Conference on Advanced Materials and Processing 

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    Event date: 2016.8

    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

  89. Phase-field simulations on rafting kinetics during high-temperature creep in nickel-based superalloy

    Y. Tsukada, T. Koyama, Y. Murata, Y. Kondo

    The 9th Pacific Rim International Conference on Advanced Materials and Processing 

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    Event date: 2016.8

    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

  90. Phase-field simulation on the growth behavior of reaction phases in nuclear fuel rod

    T. Ishikawa, T. Koyama, Y. Tsukada, M. Kurata

    The 9th Pacific Rim International Conference on Advanced Materials and Processing 

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    Event date: 2016.8

    Language:English   Presentation type:Poster presentation  

    Country:Japan  

  91. Phase-field simulation on the formation of nodule-like microstructure in nickel-based alloy

    R. Oshima, Y. Tsukada, T. Koyama, M. Yonemura

    The 9th Pacific Rim International Conference on Advanced Materials and Processing 

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    Event date: 2016.8

    Language:English   Presentation type:Poster presentation  

    Country:Japan  

  92. Image-based calculation of magnetic properties of NdFeB hard magnet based on the phase-field method and micromagnetics simulation Invited International conference

    T. Koyama, Y. Tsukada

    The 12th World Congress on Computational Mechanics 

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    Event date: 2016.7

    Language:English   Presentation type:Oral presentation (invited, special)  

    Country:Korea, Republic of  

  93. 改良型セカント法とデータ同化を用いた単相組織の応力-ひずみ曲線の逆問題的導出

    糟谷拓馬, 小山敏幸, 塚田祐貴

    日本鉄鋼協会第171回春季講演大会 

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    Event date: 2016.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:東京理科大学   Country:Japan  

  94. Nd-Fe-B 磁石の組織・特性解析へのデータサイエンス手法の適用

    小山敏幸, 塚田祐貴,小林能直,阿部太一, 大沼 郁雄

    日本金属学会 第158回春期講演大会 

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    Event date: 2016.3

    Language:Japanese   Presentation type:Oral presentation (keynote)  

    Venue:東京理科大   Country:Japan  

  95. Phase-field simulation of GP zone formation in Mg alloy and image-based calculation of precipitation hardening International conference

    T. Koyama, D.Ito, Y.Beniya and Y.Tsukada

    Twenty-Fourth International Symposium on Processing and Fabrication of Advanced Materials (PFAM XXIV) 

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    Event date: 2015.12

    Language:English   Presentation type:Oral presentation (invited, special)  

    Country:Japan  

  96. 材料設計計算工学とインフォマティクス

    小山敏幸

    日本鉄鋼協会東海支部 H27年度湯川記念講演会 

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    Event date: 2015.11

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:名古屋大学   Country:Japan  

  97. Phase-field model for describing the formation process of nano-cluster microstructure in LPSO phase International conference

    The 10th International Conference on Magnesium Alloys and Their Applications 

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    Event date: 2015.10

    Language:English   Presentation type:Oral presentation (general)  

    Venue:Ramada Plaza Jeju Hotel, Jeju, Korea   Country:Korea, Republic of  

  98. PFセカント法とデータ同化を用いた単相組織の応力-ひずみ曲線の逆問題解析

    小山敏幸, 塚田祐貴, 河合雄一郎

    日本機械学会 第 28 回計算力学講演会 

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    Event date: 2015.10

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:横浜国立大学   Country:Japan  

  99. フェーズフィールド法から力学特性への展開

    小山敏幸

    日本塑性加工学会 第212回塑性加工技術セミナー 

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    Event date: 2015.9

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:東京大学生産技術研究所   Country:Japan  

  100. 改良型セカント法とデータ同化を用いた単相組織の応力-ひずみ曲線の逆問題的導出

    小山敏幸, 塚田祐貴, 河合雄一郎

    日本鉄鋼協会第170回秋季講演大会 

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    Event date: 2015.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:九州大学(伊都キャンパス)   Country:Japan  

  101. Estimation of Materials Parameters by Data Assimilation with Phase-Field Method International conference

    T. Koyama, Y. Tsukada and Y. Kawai

    The International Conference on Solid-Solid Phase Transformations in Inorganic Materials (PTM2015) 

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    Event date: 2015.6 - 2015.7

    Language:English   Presentation type:Oral presentation (invited, special)  

    Country:Canada  

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Research Project for Joint Research, Competitive Funding, etc. 13

  1. データ創出・活用型磁性材料研究拠点「計算組織学を活用した各種磁性材料における内部組織形成のモデル化」

    2022.10 - 2032.3

    データ創出・活用型マテリアル研究開発プロジェクト 

    大久保忠勝

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    Authorship:Coinvestigator(s) 

  2. 統合型材料開発システムによるマテリアル革命

    2018.11 - 2023.3

    戦略的イノベーション創造プログラム  タービンディスク材における析出組織形成シミュレーションシステムの構築

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    Grant type:Competitive

  3. 防振ゴム配合材の組織形成手法と力学・熱特性解析手法に関する研究

    2018.4 - 2021.3

    企業からの受託研究 

  4. フェーズフィールド法と機械学習を用いたリチウム金属硫黄電池用材料組織設計

    2017.10 - 2018.3

    国内共同研究 

    足立吉隆

  5. フェーズフィールド法による新規銅合金材料の配合・加工プロセス熱処理プロセスに対する結晶組織予測

    2017.7

    企業からの受託研究 

  6. 材料組織制御プロセス技術構築のための材料科学的基盤の創製

    2017.4 - 2022.3

    元素戦略磁性材料研究拠点 

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    Grant type:Competitive

  7. フラッシュ焼結の学理構築と革新的焼結技術への展開

    2017.4 - 2021.3

    研究成果最適展開支援プログラム 

    山本剛久

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    Grant type:Competitive

  8. 有機材料の熱マネジメント展開に関する共同研究

    2017.4 - 2021.3

    企業からの受託研究 

  9. フェーズフィールド法を用いた水素遅れ破壊現象の解明

    2016.10 - 2017.3

    国内共同研究 

  10. 新規全固体電池向けフッ化物正極の微細構造制御

    2016.10 - 2017.3

    国内共同研究 

  11. フェーズフィールド法と機械学習を活用した電池材料組織設計

    2016.10 - 2017.3

    国内共同研究 

  12. フェーズフィールド(PF)法を用いた析出物形成メカニズムの解明とPF転位動力学による析出物-力学特性の定量評価

    2015.4

    先端的低炭素化技術開発(ALCA) 

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    Grant type:Competitive

  13. フェーズフィールド法を核とする組織良しくシステムの開発/データ同化に基づくフェーズフィールド法のパラメータ最適化

    2015.4

    戦略的イノベーションプログラム(SIP) 

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    Grant type:Competitive

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KAKENHI (Grants-in-Aid for Scientific Research) 3

  1. ハイエントロピー合金新学術領域研究の連携的な運営と統括

    Grant number:23H05419  2023.4 - 2024.3

    科学研究費助成事業  新学術領域研究(研究領域提案型)

    乾 晴行, 加藤 秀実, 尾方 成信, 小山 敏幸, 辻 伸泰, 古原 忠

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    Authorship:Coinvestigator(s) 

    新学術領域研究「ハイエントロピー合金:元素の多様性と不均一性に基づく新しい材料の学理」で5年間,活発な研究活動を行った結果,FCC, BCC型ハイエントロピー合金の異常な力学特性の発現メカニズムが解明され,更に高性能の力学特性を得るための方策も提唱され,種々の特異な力学特性や機能特性が発見された.プロジェクトの成果は多岐にわたり,ハイエントロピー合金新学術領域の総括班メンバー6名(領域代表者と各計画研究の研究代表者)がそれぞれ役割分担を行なって,プロジェクトから生まれた研究成果の電子アーカイブ化,社会一般への成果の情報発信,英文図書の発行,国際ワークショップの開催等を行う.

  2. Cooperative management of the innovative area research on high-entropy alloys

    Grant number:18H05450  2018.6 - 2023.3

    Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)

    INUI HARUYUKI

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    Authorship:Coinvestigator(s)  Grant type:Competitive

    This research group was established for the management of the Grant-in-Aid for Scientific Research on the Innovative Area on High-Entropy Alloys, which is supported by the Ministry of education, Culture, Sports, Science and Technology. The activity of this group has enabled active and fruitful cooperative research among research groups in the project through designing and directing a number of cooperative research and linking individual researchers with expected mutual scientific interest. The group has developed the administrative system that manages various aspects of the whole project, planned many meetings that promote common scientific senses of the researchers in the project, and promoted the exchanges of scientific ideas and human resources that stimulate many cooperative researches. The group has also disseminated much information of the scientific results on high-entropy alloy study to our society through the home page and seminars and symposia.

  3. Materials design of high-entropy alloys accelerated by synergistic combination of computational thermodynamics and simulation of phase transformations

    Grant number:18H05454  2018.6 - 2023.3

    Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)

    Koyama Toshiyuki

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    Authorship:Principal investigator  Grant type:Competitive

    Grant amount:\167700000 ( Direct Cost: \129000000 、 Indirect Cost:\38700000 )

    It was logically elucidated from the CALPHAD method that the disordered state of HEAs is macroscopically close to an ideal solution. From the cluster expansion method and Monte Carlo simulations, we proposed that phase equilibria involving atomistic ordered structures can exist microscopically within the solid solution. By applying machine learning to first-principles calculations, we developed a method of searching for alloy compositions that exhibit superior material properties. The ternary alloy systems within Cantor alloy were investigated, and we determined the experimental phase diagram mainly for the σ-phase region. A module to calculate the grain boundary segregation in multicomponent alloys was developed. It was clarified based on the multicomponent diffusion theory that the sluggish diffusion cannot be explained by the high-entropy effect. We proposed a methodology for estimating material parameters from microstructural information based on the inverse problem methods.

 

Teaching Experience (On-campus) 16

  1. 金属工学通論I

    2018

  2. 統合型材料デザイン

    2018

  3. 基礎セミナーB

    2018

  4. 材料デザインエンジニアリング実習

    2018

  5. 材料組織学

    2018

  6. 材料組織学

    2017

  7. 材料デザインエンジニアリング実習

    2017

  8. 基礎セミナーB

    2017

  9. 統合型材料デザイン

    2017

  10. 金属工学通論I

    2017

  11. 電子構造機能設計学基礎

    2017

  12. 金属材料学基礎

    2017

  13. 鉄鋼材料学

    2016

  14. 材料組織形成学特論

    2016

  15. 金属材料学基礎

    2016

  16. 材料組織学

    2016

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Teaching Experience (Off-campus) 2

  1. データ駆動型社会を担う人材育成プログラム「材料設計計算工学とデータ駆動科学」

    2022.9 - 2024.3 Kumamoto University)

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    Level:Other  Country:Japan

  2. 材料物理学

    2020.10 - 2021.3 Suzuka National College of Technology)