The influence of deformation twinning on yield strength in cold-rolled FCC ferrous alloy

Tatsuya Morikawa, Taku Moronaga, Kenji Higashida

    研究成果: Contribution to journalArticle査読

    7 被引用数 (Scopus)

    抄録

    The effect of a fine lamellar structure due to deformation twin on the yield strength of fee ferrous alloys has been investigated by using cold-rolled Fe-36mass%Ni alloy and 310S stainless steels. Microstructural evolution during cold-rolling of both alloys has been also examined by using transmission electron microscopy. In cold-rolled Fe-36mass%Ni alloy, a kind of layered cell structure was observed, but no deformation twin was found. On the other hand, in a 310S steel, a fine lamellar structure of twin-matrix (T-M) was markedly developed with cold-rolling. The cold-rolled 310S steels exhibited yield strengths about 2 times higher than those of the rolled Fe-Ni alloys in spite that the yield strength of as-annealed 310S is lower than that of as-annealed Fe-Ni alloy. This indicates that the occurrence of fine T-M lamellae during cold-rolling enhances the evolution of fine-grained structure, which causes the marked increase in the yield strength of the rolled specimens.

    寄稿の翻訳タイトルThe influence of deformation twinning on yield strength in cold-rolled FCC ferrous alloy
    本文言語日本語
    ページ(範囲)834-838
    ページ数5
    ジャーナルTetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan
    91
    11
    DOI
    出版ステータス出版済み - 11 2005

    All Science Journal Classification (ASJC) codes

    • 凝縮系物理学
    • 物理化学および理論化学
    • 金属および合金
    • 材料化学

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