Microstructural characteristics developed by inhomogeneous plastic flow: Focusing on the formation of shear bands

Kenji Higashida, Tatsuya Morikawa

    Research output: Contribution to journalArticlepeer-review

    12 Citations (Scopus)

    Abstract

    Microstructural characteristics developed by inhomogeneous plastic flow in fee metals and alloys have been reviewed. The aspect of microstructural evolution due to plastic deformation in fee materials is markedly influenced by the values of SFE. Particular emphasis is laid on the formation of shear bands in a cold-rolled low SFE metal such as 310S austenitic stainless steel. In cold-rolled 310S steel, deformation twinning easily occurs to form fine lamellar structure due to twin (T) and matrix (M). Further deformation causes shear band formation. In shear bands, fine-grained structures are formed with large orientation scattering. The multiplication of shear bands destroys the fine T-M lamellae to form fine-grained structures being similar to those due to severe plastic deformation. Shear bands are considered to be a microstructural instability where intense shear deformation occurs due to the local collapse of fully work-hardened structure.

    Original languageEnglish
    Pages (from-to)576-581
    Number of pages6
    JournalTetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan
    Volume94
    Issue number12
    DOIs
    Publication statusPublished - 2008

    All Science Journal Classification (ASJC) codes

    • Condensed Matter Physics
    • Physical and Theoretical Chemistry
    • Metals and Alloys
    • Materials Chemistry

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