Flow controllability of hydrogen diffusion driven by local stress field for steel under cyclic loading condition

Toshihito Ohmi, A. Toshimitsu Yokobori, Kenichi Takei

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    7 Citations (Scopus)

    Abstract

    The hydrogen diffuses and accumulates at the stress concentration area like a crack tip and it causes hydrogen embrittlement. To clarify the mechanism of hydrogen embrittlement, it is important to obtain the hydrogen concentration behavior. However, experimental detection is not feasible due to the high diffusivity of hydrogen and numerical analyses have been preceded. In this paper, by using a finite element and finite difference coupled method at which the diffusion analysis is performed by FDM coupled with the stress analysis by FEM, the analyses of hydrogen diffusion were conducted under cyclic loading conditions.

    Original languageEnglish
    Title of host publicationDiffusion in Solids and Liquids VII
    Subtitle of host publicationSolids and Liquids, Mass Transfer - Heat Transfer - Microstructure and Properties - Nanodiffusion and Nanostructured Materials
    PublisherTrans Tech Publications Ltd
    Pages626-631
    Number of pages6
    Volume326-328
    ISBN (Print)9783037854006
    DOIs
    Publication statusPublished - 2012 Jan 1
    Event7th International Conference on Diffusion in Solids and Liquids, Mass Transfer - Heat Transfer - Microstructure and Properties - Nanodiffusion and Nanostructured Materials, DSL 2011 - Algarve, Portugal
    Duration: 2011 Jun 262011 Jun 30

    Other

    Other7th International Conference on Diffusion in Solids and Liquids, Mass Transfer - Heat Transfer - Microstructure and Properties - Nanodiffusion and Nanostructured Materials, DSL 2011
    CountryPortugal
    CityAlgarve
    Period11/6/2611/6/30

    Keywords

    • FEM-FDM coupling method
    • Fatigue
    • Hydrogen distribution
    • Hydrogen embrittlement
    • Hydrogen flux
    • Numerical analysis

    ASJC Scopus subject areas

    • Radiation
    • Materials Science(all)
    • Condensed Matter Physics

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  • Cite this

    Ohmi, T., Yokobori, A. T., & Takei, K. (2012). Flow controllability of hydrogen diffusion driven by local stress field for steel under cyclic loading condition. In Diffusion in Solids and Liquids VII: Solids and Liquids, Mass Transfer - Heat Transfer - Microstructure and Properties - Nanodiffusion and Nanostructured Materials (Vol. 326-328, pp. 626-631). Trans Tech Publications Ltd. https://doi.org/10.4028/www.scientific.net/DDF.326-328.626