Motomichi Koyama
Tohoku University
H-index: 39
Asia-Japan
Top articles of Motomichi Koyama
Title | Journal | Author(s) | Publication Date |
|---|---|---|---|
Plasticity-induced hydrogen desorptions associated with hydrogen-assisted martensitic transformation and deformation twinning in austenitic stainless steels | ISIJ International | Yifei Wen Motomichi Koyama Tomohiko Hojo Saya Ajito Eiji Akiyama | 2024/1/30 |
Effect of Stretch-forming on Hydrogen Diffusion Behavior in High-strength Steel Sheet | ISIJ International | Hayato Nishimura Saya Ajito Tomohiko Hojo Motomichi Koyama Ken-ichi Fujita | 2024/2/28 |
Microscopic visualization of hydrogen diffusion in UNS S32750 super duplex stainless steel: Roles of crystal structure and grain size | International Journal of Hydrogen Energy | Hiroshi Kakinuma Saya Ajito Motomichi Koyama Eiji Akiyama | 2024/3/15 |
In situ visualization of misorientation-dependent hydrogen diffusion at grain boundaries of pure polycrystalline Ni using a hydrogen video imaging system | Acta Materialia | Hiroshi Kakinuma Saya Ajito Tomohiko Hojo Motomichi Koyama Eiji Akiyama | 2024/1/15 |
Overview of hydrogen effects on γ− ε martensitic transformation in steels | ISIJ International | Motomichi Koyama Satoshi Iikubo Rama Srinivas Varanasi | 2024/2/28 |
Local yield stress and its unusual independence on multi-axial stress states during Lüders deformation of medium-Mn, high-strength steel | ISIJ International | Takashi Matsuno Koki Furukawa Yoshitaka Okitsu Motomichi Koyama Toshihiro Tsuchiyama | 2024/3/15 |
Dual grain size-effects on hydrogen-assisted fatigue crack growth in 1 GPa-class medium-carbon martensitic steel | International Journal of Hydrogen Energy | Yuhei Ogawa Kazuhiro Kuriyama Motomichi Koyama | 2024/1/2 |
Hydrogen-assisted localized plasticity driven by dislocation pinning-depinning: Finite element simulations | International Journal of Hydrogen Energy | Daisuke Sasaki Yuki Kusaba Motomichi Koyama | 2024/2/22 |
An atomistic study on the HELP mechanism of hydrogen embrittlement in pure metal Fe | International Journal of Hydrogen Energy | Md Shahrier Hasan Mehmet Fazil Kapci Burak Bal Motomichi Koyama Hadia Bayat | 2024 |
Critical role of initial multi-phase microstructure on the phase transformations during hydrogenation in Fe–Mo alloy system | International Journal of Hydrogen Energy | Rama Srinivas Varanasi Motomichi Koyama Reina Utsumi Hiroyuki Saitoh Toyoto Sato | 2024/1/2 |
オパールフォトニック結晶膜の色調変化─ ひずみ関係の定量評価および複雑形状試験片への適用 | 鉄と鋼 | 周宇涛， 楊志鵬， 小山元道， 味戸沙耶， 北條智彦， 不動寺浩， 秋山英二 | 2024/2/15 |
Hydrogen Embrittlement Property of a 1.5 GPa Dual-Phase Steel Evaluated Using U-bending Test: A Comparison with Tempered Martensitic Steel with Identical Tensile Strength | ISIJ International | Shuya Chiba Motomichi Koyama Tomohiko Hojo Saya Ajito Yuki Shibayama | 2024/2/28 |
Fe-5Mn-0.1 C 中 Mn 鋼におけるリューダース変形中の微視組織および塑性の発達 | 鉄と鋼 | 小山元道， 山下享介， 諸岡聡， 澤口孝宏， 楊志鵬， 北條智彦， 川崎卓郎 | 2024/2/15 |
Strain rate-dependent tensile deformation behavior and fracture mechanism of Mn–N bearing lean duplex stainless steel | Materials Science and Engineering: A | Yongxin Wang Lei Chen Lizi Shao Shuo Hao Motomichi Koyama | 2024/1/1 |
Grain refinement effect on resistance to hydrogen-assisted crack growth in equiatomic CoCrFeNi high-entropy alloy with different H charging conditions | ISIJ International | Taein Kong Haoyu Wang Taekyung Lee Motomichi Koyama Eiji Akiyama | 2024/2/28 |
Transformation-induced microcracks and their arrest with different deformation temperatures in a medium Mn steel | Metallurgical and Materials Transactions A | Yutao Zhou Motomichi Koyama Tomohiko Hojo Saya Ajito Eiji Akiyama | 2023/1 |
Phase transformations and microstructure evolutions during depressurization of hydrogenated Fe–Mn–Si–Cr alloy | Minerals Engineering | Jinxiang You Meishi Hu Mingjun Rao Xin Zhang Jun Luo | 2024/1/1 |
Mesoscale quantification of grain boundary character and local plasticity in hydrogen-assisted intergranular and intergranular-like cracking paths in tempered martensitic steel | Materials Science and Engineering: A | Tingshu Chen Motomichi Koyama Takahiro Chiba Eiji Akiyama Kenichi Takai | 2023/10/17 |
Mechanical loading effect on the hydrogen uptake of tempered martensite steel: Elastic strain effect vs. plastic strain effect | Materials Science and Engineering: A | Yota Masuda Motomichi Koyama Hiroshi Kakinuma Eiji Akiyama | 2023/1/18 |
Temperature dependence of hydrogen-assisted damage evolution and fracture behavior in TRIP-aided bainitic ferrite steel | Materials Science and Engineering: A | Yutao Zhou Tomohiko Hojo Motomichi Koyama Saya Ajito Eiji Akiyama | 2023/10/17 |
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