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

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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.

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Creator
  • Name
    K. Okada
    ORCID
    https://orcid.org/0000-0003-0183-4528
    Organization
    National Institute for Materials Science
    Sub organization
    Research Center for Structural Materials/Materials Evaluation Field/Steel Research Group
    Role
    author
    Name
    A. Shibata
    ORCID
    https://orcid.org/0000-0001-8577-6411
    Organization
    National Institute for Materials Science
    Sub organization
    Research Center for Structural Materials/Materials Evaluation Field/Steel Research Group
    Role
    author
    Name
    Wu Gong
    Organization
    Materials and Life Science Division, J-PARC Center
    Role
    author
    Name
    N. Tsuji
    Organization
    Kyoto Univeristy
    Role
    author
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  • 27/08/2024
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