Micro shear bands in cold-rolled austenitic stainless steel

Tatsuya Morikawa, Daihei Senba, Kenji Higashida, Ryuta Onodera

    Research output: Contribution to journalArticlepeer-review

    29 Citations (Scopus)

    Abstract

    Shear bands (SBs) in cold-rolled austenitic stainless steel 310S have been investigated by using transmission electron microscopy (TEM). Shear Bands appear in the region of twin-matrix lamellae which have already developed at moderate strain. Inside the shear band, fine grains are observed, and the shape of each grain is somewhat elongated along the shear direction. These features found in 310S are similar to those observed in materials with very low stacking fault energy such as α-brass. Selected area diffraction patterns obtained from a SB reveals that local orientations inside the SB are distributed between those in the matrix and the twinning region. Using dark field images of the SB, it is shown that some of the misorientations of neighboring grains in the SB reach nearly 20 degrees. Based on these observations, the formation mechanism of SBs is discussed.

    Original languageEnglish
    Pages (from-to)891-894
    Number of pages4
    JournalMaterials Transactions, JIM
    Volume40
    Issue number9
    DOIs
    Publication statusPublished - 1999

    All Science Journal Classification (ASJC) codes

    • Engineering(all)

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