Surface-layer microstructure control for metastable austenitic stainless steel to prevent hydrogen permeation

T. Tsuchiyama, Hidenori Takebe, Koichi Tsuboi, Setsuo Takaki

    Research output: Contribution to journalArticlepeer-review

    10 Citations (Scopus)

    Abstract

    Solution nitriding was applied to type 304 stainless steel plate to make the austenite phase in the surface layer stable against cold rolling. Through this treatment, we could produce a structure-gradient stainless steel plate where an austenitic structure exists in the surface layer while a large fraction of deformation-induced martensitic structure is dispersed inside the plate. This surface-layer microstructure control significantly suppressed the permeation of hydrogen from the atomosphere owing to the low diffusivity of hydrogen in the stable austenitic surface layer.

    Original languageEnglish
    Pages (from-to)731-734
    Number of pages4
    JournalScripta Materialia
    Volume62
    Issue number10
    DOIs
    Publication statusPublished - May 2010

    All Science Journal Classification (ASJC) codes

    • Materials Science(all)
    • Condensed Matter Physics
    • Mechanics of Materials
    • Mechanical Engineering
    • Metals and Alloys

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