Microstructural and crystallographic characteristics of deformation-induced martensite formed in cold-drawn 316 type stainless steel

Nobuo Nakada, Hidetoshi Ito, Yoshikazu Matsuoka, Toshihiro Tsuchiyama, Setsuo Takaki

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

    2 Citations (Scopus)

    Abstract

    Deformation-induced martensite preferentially nucleates at the twin boundary between matrix austenite and deformation twin in 316 type stainless steel. In the cold-rolled specimen, the martensite formed at the twin boundary has K-S relationships with both of the austenite matrix and the deformation twin, that is, "double K-S relationship" is realized. While in the case of cold-drawn specimen, two kinds of twins with different twin planes are typically observed, and therefore, the deformation-induced martensites are formed at the intersections of the two deformation twin boundaries, satisfying "triple K-S relationship" among austenite matrix and two deformation twins, although there is a small misfit from the perfect K-S relationship. The complicated crystallographic orientation relationship leads to a strong variant restriction for deformation-induced martensites. Due to the difference in the number of nucleation sites, martensitic transformation is greatly promoted in cold-drawn specimen rather than cold-rolled one.

    Original languageEnglish
    Title of host publicationSolid-Solid Phase Transformations in Inorganic Materials
    PublisherTrans Tech Publications Ltd
    Pages99-104
    Number of pages6
    ISBN (Print)9783037851432
    DOIs
    Publication statusPublished - 2011

    Publication series

    NameSolid State Phenomena
    Volume172-174
    ISSN (Print)1012-0394

    All Science Journal Classification (ASJC) codes

    • Atomic and Molecular Physics, and Optics
    • General Materials Science
    • Condensed Matter Physics

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