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Kenichi Takai

Sophia University

Tokyo, 102

United States

  • Sophia University

SCHOLARLY PAPERS

3

DOWNLOADS

161

TOTAL CITATIONS

1

Scholarly Papers (3)

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1.

Effects of Alloying Elements on the Hydrogen Solubility in α-Fe and Their Electronic Origins: An Experimental and DFT Study

Number of pages: 48 Posted: 02 Sep 2025
Kazuma Ito, Tomohiko Omura, Ayaka Udagawa and Kenichi Takai
Nippon Steel Corporation, Nippon Steel Corporation, Sophia University and Sophia University
Downloads 88 (753,595)

Abstract:

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hydrogen embrittlement, Ferritic steels, Atomistic modeling, density functional theory, Solubility

2.

Effects of Hydrogen Blocking and Trapping by Point Defects on Hydrogen Diffusivity in B2-Type Pdcu Alloys: Modeling and Experimental Analysis

Downloads 44 (1,133,231)

Effects of Hydrogen Blocking and Trapping by Point Defects on Hydrogen Diffusivity in B2-Type Pdcu Alloys: Modeling and Experimental Analysis

Number of pages: 16 Posted: 07 May 2025
Akihiro Mitsuhara, Kei Saito, Hiroshi Yukawa, Kenichi Takai and Hajime Kimizuka
Nagoya University, Sophia University, Nagoya University, Sophia University and Nagoya University - Department of Materials Design Innovation Engineering
Downloads 22 (1,473,203)

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Hydrogen diffusivity, Hydrogen-permeable alloys, Metal-hydrogen system, Kinetic Monte Carlo method, Thermal desorption spectroscopy

Effects of Hydrogen Blocking and Trapping by Point Defects on Hydrogen Diffusivity in B2-Type Pdcu Alloys: Modeling and Experimental Analysis

Number of pages: 16 Posted: 07 May 2025
Akihiro Mitsuhara, Kei Saito, Hiroshi Yukawa, Kenichi Takai and Hajime Kimizuka
Nagoya University, Sophia University, Nagoya University, Sophia University and Nagoya University - Department of Materials Design Innovation Engineering
Downloads 22 (1,473,203)

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Hydrogen diffusivity, Hydrogen-permeable alloys, Metal-hydrogen system, Kinetic Monte Carlo method, Thermal desorption spectroscopy

3.

Mesoscale Quantification of Grain Boundary Character and Local Plasticity in Hydrogen-Assisted Intergranular and Intergranular-Like Cracking Paths in Tempered Martensitic Steel

Number of pages: 21 Posted: 05 Jul 2023
Tingshu Chen, Motomichi Koyama, Takahiro Chiba, Eiji Akiyama and Kenichi Takai
Tohoku University, Tohoku University - Institute for Materials Research (IMR), Sophia University, Tohoku University - Institute for Materials Research and Sophia University
Downloads 29 (1,332,057)
Citation 1

Abstract:

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Hydrogen embrittlement, Martensitic steel, Grains and interfaces, fracture behaviour, Iron alloys, plasticity