Formation of ultra fine grained structure during annealing of heavily drawn metastable austenitic steel wire

T. Fukumaru, T. Inoue, T. Tsuchiyama, S. Takaki

    研究成果: 書籍/レポート タイプへの寄稿会議への寄与

    抄録

    It is well known that the ultra grain refinement can be achieved by sever cold rolling, followed by reversion treatment in metastable austenitic stainless steel plate. In this study, the cold rolling was replaced by cold drawing. This procedure was applied to a metastable austenitic steel (Fe-16Cr-10Ni alloy) thin wire, and then the microstructure development during cold drawing and annealing was investigated. The austenite phase transformed to martensite during the drawing. Vickers hardness of the wire markedly increased with increasing the drawing strain. When the drawing strain reached about 4,5, the wire exhibited martensite single structure and had high hardness of Hv4.4GPa, Annealing of the heavily drawn wire at around 900K for 0.6ks leads to the formation of reversed austenite with the diffusional reversion mechanism, As a result, ultra fine-grained austenitic single structure with the grain size of about 0.6μm was obtained, It was also found that the wire has an excellent combination of a strength and ductility.

    本文言語英語
    ホスト出版物のタイトルRecrystallization and Grain Growth III - Proceedings of the Third International Conference on Recrystallization and Grain Growth, ReX and GG III
    出版社Trans Tech Publications Ltd
    ページ1309-1312
    ページ数4
    PART 2
    ISBN(印刷版)087849443X, 9780878494439
    DOI
    出版ステータス出版済み - 1月 1 2007
    イベント3rd International Conference on Recrystallization and Grain Growth, ReX GG III - Jeju Island, 韓国
    継続期間: 6月 10 20076月 15 2007

    出版物シリーズ

    名前Materials Science Forum
    番号PART 2
    558-559
    ISSN(印刷版)0255-5476

    その他

    その他3rd International Conference on Recrystallization and Grain Growth, ReX GG III
    国/地域韓国
    CityJeju Island
    Period6/10/076/15/07

    !!!All Science Journal Classification (ASJC) codes

    • 材料科学(全般)
    • 凝縮系物理学
    • 材料力学
    • 機械工学

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