47 records found. Displaying records 1 to 10.
Relative contributions of solutes and forest dislocations to thermally activated plasticity in hydrogen-alloyed Fe-Cr-Ni austenitic steels: analyzing stress-dependence of Haasen plot
- Journal article
- Creator
-
Yuhei Ogawa (author) (Search by this author)
;
Akinobu Shibata (author) (Search by this author)
- Keyword
- Austenitic steel, Hydrogen, Plastic deformation, Dislocations, Thermal activation
- Date published
- 2026-07-20
- Updated at
- 2026-08-04 08:31:23 +0900
Dislocation-pinning and dynamic strain-aging in hydrogen-alloyed Fe-Cr-Ni austenitic steel at sub-ambient temperatures
- Journal article
- Creator
-
Yuhei Ogawa (author) (Search by this author)
;
;Tatsuya Ito (author) (Search by this author);Haruki Nishida (author) (Search by this author);Osamu Takakuwa (author) (Search by this author);Kaneaki Tsuzaki (author) (Search by this author)Stefanus Harjo (author) (Search by this author)
https://orcid.org/0000-0001-7386-2398
(unauthenticated)
;
Akinobu Shibata (author) (Search by this author)
- Keyword
- Austenitic steel, Hydrogen, Dislocations, Dynamic strain-aging
- Date published
- 2026-06-15
- Updated at
- 2026-06-25 13:47:18 +0900
Data-driven analysis of hydrogen embrittlement in martensitic steels with interpretable machine learning
- Journal article
- Creator
-
Houichi Kitano (author) (Search by this author)
;
Yuuji Kimura (author) (Search by this author)
;
Akinobu Shibata (author) (Search by this author)
- Keyword
- Hydrogen embrittlement, Martensitic steel, Machine learning, hap (shapley additive explanations), Symbolic regression
- Date published
- 2026-04-23
- Updated at
- 2026-06-17 09:57:29 +0900
Phenomenology and Mechanisms of Hydrogen–Induced Solid Solution–Hardening in Fe–Cr–Ni Austenitic Steels
- Journal article
- Creator
-
Yuhei Ogawa (author) (Search by this author)
;
;Osamu Takakuwa (author) (Search by this author);Junichiro Moriyama (author) (Search by this author);Haruki Nishida (author) (Search by this author);Kaneaki Tsuzaki (author) (Search by this author)Akinobu Shibata (author) (Search by this author)
- Keyword
- Austenitic steel, Hydrogen, Solid solution-hardening
- Date published
- 2026-04-01
- Updated at
- 2026-04-01 15:17:12 +0900
Study of the influence of hydrogen on strain hardening and strain localization in a Fe-19Ni-24Cr austenitic steel through quantitative dislocation structure analysis
- Journal article
- Creator
-
Ivan Gutiérrez-Urrutia (author) (Search by this author)
;
Yuhei Ogawa (author) (Search by this author)
;
Akinobu Shibata (author) (Search by this author)
- Keyword
- Austenitic steel, Hydrogen, Dislocation structure, Strain hardening
- Date published
- 2026-03-07
- Updated at
- 2026-03-27 10:55:01 +0900
Refining hydrogen-dislocation interaction model for thermally activated plasticity in Fe-Cr-Ni austenitic steels: analyzing stress-dependent activation volume
- Journal article
- Creator
-
Yuhei Ogawa (author) (Search by this author)
;
Akinobu Shibata (author) (Search by this author)
- Keyword
- Austenitic steel, Hydrogen, Dislocations, Thamal activation
- Date published
- 2026-01-03
- Updated at
- 2026-01-14 13:17:53 +0900
Enhancing hydrogen embrittlement resistance in high-strength martensitic steels via tailoring variant selection at prior austenite grain boundaries
- Journal article
- Creator
-
Xiaodong Lan (author) (Search by this author)
;
Kazuho Okada (author) (Search by this author)
;
Rintaro Ueji (author) (Search by this author)
;
Akinobu Shibata (author) (Search by this author)
- Keyword
- Martensitic steels, Thermomechanical processing, Variant selection, Hydrogen embrittlement, Intergranular fracture
- Date published
- 2025-12-30
- Updated at
- 2026-01-05 10:52:39 +0900
Effect of cooling rate after high-temperature heating on the ductility of 19Cr-0.020C-0.015N-0.4Nb stabilized ferritic stainless cast steel
- Journal article
- Creator
-
Rie Nishio (author) (Search by this author)
https://orcid.org/0009-0001-3579-298X
(unauthenticated)
;
;Takuo Umetani (author) (Search by this author);Yasuhiko Nakamura (author) (Search by this author)Taisuke T. Sasaki (author) (Search by this author)
;
Akinobu Shibata (author) (Search by this author)
- Keyword
- Ferritic stainless cast steel, Nb stabilized steel, Heat treatment, Cooling rate, Ductility, Cleavage fracture
- Date published
- 2025-08-29
- Updated at
- 2025-12-19 14:03:10 +0900
Grain refinement of dual phase steel maximizes deformation ability of martensite, leading to simultaneous enhancement of strength and ductility
- Journal article
- Creator
-
;Myeong-heom Park (author) (Search by this author)Akinobu Shibata (author) (Search by this author)National Institute for Materials Science
;
;Stefanus Harjo (author) (Search by this author)Nobuhiro Tsuji (author) (Search by this author)
- Keyword
- Strength-ductility synergy, Strain-hardening, Stress/strain partitioning, Deformation constraint, Digital image correlation (DIC), In-situ neutron diffraction during deformation
- Date published
- 2025-04-16
- Updated at
- 2025-12-09 16:30:13 +0900
Grain size effects on strain localization and fracture behavior in ferrite–martensite dual-phase steels characterized by digital image correlation analysis
- Journal article
- Creator
-
;Myeong-heom Park (author) (Search by this author);Yuichi Tagusari (author) (Search by this author)Akinobu Shibata (author) (Search by this author)National Institute for Materials Science
;
Nobuhiro Tsuji (author) (Search by this author)
- Keyword
- Dual phase steel, Mechanical properties, Digital image correlation (DIC), Strain distribution, Micro void, Fracture
- Date published
- 2025-06-23
- Updated at
- 2025-12-09 16:30:11 +0900