研究者詳細 - 小橋　眞

論文 - 小橋　眞

分割表示 305 件中 21 - 40 件目／全件表示 >>

Managing both high strength and thermal conductivity of a laser powder bed fused Al-2.5Fe binary alloy: Effect of annealing on microstructure 査読有り

Qi, X; Takata, N; Suzuki, A; Kobashi, M; Kato, M

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 805 巻頁： 140591 2021年2月

Understanding and suppressing shear band formation in strut-based lattice structures manufactured by laser powder bed fusion

Liu Xiaoyang, Wada Takafumi, Suzuki Asuka, Takata Naoki, Kobashi Makoto, Kato Masaki

MATERIALS & DESIGN 199 巻 2021年2月

Understanding and suppressing shear band formation in strut-based lattice structures manufactured by laser powder bed fusion

Liu Xiaoyang, Wada Takafumi, Suzuki Asuka, Takata Naoki, Kobashi Makoto, Kato Masaki

MATERIALS & DESIGN 199 巻 2021年2月

Fabrication of Metal Matrix Composite Containing Manganese Nitride Showing Giant Negative Thermal Expansion by Compressive Torsion Processing 査読有り

Takenaka, K; Otsuka, K; Okamoto, Y; Kume, Y; Kobashi, M

MATERIALS TRANSACTIONS 62 巻 ( 5 ) 頁： 590 - 595 2021年

Induction-activated self-propagating, high-temperature synthesis of nickel aluminide

Shekari, M; Adeli, M; Khobzi, A; Kobashi, M; Kanetake, N

ADVANCED POWDER TECHNOLOGY 28 巻 ( 11 ) 頁： 2974 - 2979 2017年11月

Change in microstructure of selectively laser melted AlSi10Mg alloy with heat treatments

Takata, N; Kodaira, H; Sekizawa, K; Suzuki, A; Kobashi, M

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 704 巻頁： 218 - 228 2017年9月

Compressive properties of porous Ti-Al alloys fabricated by reaction synthesis using a space holder powder

Takata, N; Uematsu, K; Kobashi, M

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 697 巻頁： 66 - 70 2017年6月

Pressure-less melt infiltration characteristics of Mg melt into Ti powder preforms with various pore structures: Toward the application to the binder jetting additive manufacturing

Li, ZY; Suzuki, A; Takata, N; Kobashi, M

JOURNAL OF MATERIALS PROCESSING TECHNOLOGY 331 巻頁： 118509 - 118509 2024年10月

Enhancing Capillary Pressure of Porous Aluminum Wicks by Controlling Bi-Porous Structure Using Different-Sized NaCl Space Holders

Shen, HF; Suzuki, A; Takata, N; Kobashi, M

MATERIALS 17 巻 ( 19 ) 頁： 4729 - 4729 2024年10月

Variation in microstructural features of melt-pool structure in laser powder bed fused Al-Fe-Cu alloy at elevated temperatures

Cheng, Y; Miyawaki, T; Wang, WY; Takata, N; Suzuki, A; Kobashi, M; Kato, M

JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T 32 巻頁： 4048 - 4058 2024年9月

Thermal stability of refined Al 6 (Fe, Mn) phase formed in laser powder bed fusion process

Wang, WY; Xu, YF; Deguchi, M; Takata, N; Suzuki, A; Kobashi, M; Kato, M; Mitsuhara, M; Nakashima, H

JOURNAL OF ALLOYS AND COMPOUNDS 992 巻 2024年7月

Elucidating dominant flow channel size for capillary performance of open-cell porous wicks 査読有り

Shen, HF; Suzuki, A; Takata, N; Kobashi, M

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER 223 巻頁： 125217 - 125217 2024年5月

Four-dimensional electrochemical impedance spectroscopy: Role of microstructure on corrosion behaviour of Al-Si alloys additive-manufactured by laser powder bed fusion 査読有り

Hoshi, Y; Miyazawa, R; Otani, Y; Kim, D; Takata, N; Kobashi, M

CORROSION SCIENCE 232 巻 2024年5月

Effect of Cr content on thermally activated deformation in single-crystal micropillars of Fe-Cr binary alloys 査読有り

Zhu, TQ; Takata, N; Kim, D; Kobashi, M; Yoshino, M; Tsukamura, M

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 900 巻 2024年5月

In-Situ SEM Observation and DIC Strain Analysis for Deformation and Cracking of Hot-Dip ZnMgAl Alloy Coating 査読有り

Takata, N; Yokoi, H; Kim, D; Suzuki, A; Kobashi, M

CORROSION SCIENCE AND TECHNOLOGY-KOREA 23 巻 ( 2 ) 頁： 113 - 120 2024年4月

Microstructural origins of high strength of Al–Si alloy manufactured by laser powder bed fusion: In-situ synchrotron radiation X-ray diffraction approach 査読有り

Naoki Takata, Mulin Liu, Masahiro Hirata, Asuka Suzuki, Makoto Kobashi, Masaki Kato, Hiroki Adachi

Journal of Materials Science and Technology 178 巻頁： 80 - 89 2024年4月

記述言語：英語掲載種別：研究論文（学術雑誌）

The microstructural factors contributing to the high strength of additive-manufactured Al–Si alloys using laser-beam powder bed fusion (PBF-LB) were identified by in-situ synchrotron X-ray diffraction in tensile deformation and transmission electron microscopy. PBF-LB and heat treatment were employed to manufacture Al–12%Si binary alloy specimens with different microstructures. At an early stage of deformation prior to macroscopic yielding, stress was dominantly partitioned into the α-Al matrix, rather than the Si phase in all specimens. Highly concentrated Si solute (∼3%) in the α-Al matrix promoted the dynamic precipitation of nanoscale Si phase during loading, thereby increasing the yield strength. After macroscopic yielding, the partitioned stress in the Si phase monotonically increased in the strain-hardening regime with an increase in the dislocation density in the α-Al matrix. At a later stage of strain hardening, the flow curves of the partitioned stress in the Si phase yielded stress relaxation owing to plastic deformation. Therefore, Si-phase particles localized along the cell walls in the cellular-solidified microstructure play a significant role in dislocation obstacles for strain hardening. Compared with the results of the heat-treated specimens with different microstructural factors, the dominant strengthening factors of PBF-LB manufactured Al–Si alloys were discussed.

DOI： 10.1016/j.jmst.2023.08.050

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CALPHAD-aided design of high-strength Al-Si-Mg alloys for sufficient laser powder bed fusion processability 査読有り

Otani, Y; Saki, K; Takata, N; Suzuki, A; Kobashi, M; Kato, M

JOURNAL OF ALLOYS AND COMPOUNDS 977 巻頁： 173449 - 173449 2024年3月