Report Effect of Hydrogen on Evolution of Deformation Microstructure in 2Mn-0.1C Ferritic Steel

K. Okada SAMURAI ORCID (Research Center for Structural Materials/Materials Evaluation Field/Steel Research Group, National Institute for Materials ScienceROR) ; A. Shibata SAMURAI ORCID (Research Center for Structural Materials/Materials Evaluation Field/Steel Research Group, National Institute for Materials ScienceROR) ; Wu Gong (Materials and Life Science Division, J-PARC Center) ; N. Tsuji (Kyoto Univeristy)

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Citation
K. Okada, A. Shibata, Wu Gong, N. Tsuji. Effect of Hydrogen on Evolution of Deformation Microstructure in 2Mn-0.1C Ferritic Steel.
SAMURAI

Description:

(abstract)

In this study, the effect of hydrogen on the evolution of the deformation microstructure in 2Mn-0.1C steel mainly composed of ferrite microstructure was systematically investigated. We found that the densities of the total dislocations (existing outside the LEDS boundaries and constituting LEDS boundaries) were higher in the hydrogen-charged specimens. In addition, we conclude that hydrogen increases the relative mobility of screw dislocations to edge dislocation, leading to the frequent cutting of screw dislocations and tangled dislocation morphology.

Rights:

Keyword: Ferritic steel, Hydrogen embrittlement, Dislocation, Neutron diffraction

Date published: [2024年]

Publisher: J-PARC MLF

Journal:

  • MLF Annual Report 2022 p. 7-9

Funding:

Manuscript type: Publisher's version (Version of record)

MDR DOI:

First published URL: https://mlfinfo.jp/en/reports/published.html

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Updated at: 2024-08-27 16:30:32 +0900

Published on MDR: 2024-08-27 16:30:32 +0900

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