Influence of chromium on the Hall-Petch coefficient in ferritic steel

Akira Hironaka, Nobuo Nakada, Toshihiro Tsuchiyama, Setsuo Takaki

    研究成果: 書籍/レポート タイプへの寄稿会議への寄与

    7 被引用数 (Scopus)

    抄録

    In ferritic stainless steels, the amount of Cr is moderately controlled to have good corrosion resistance in applied environment. However, it also affects the yield strength of ferritic stainless steels through solid solution strengthening and grain refinement strengthening. Until now, some researches have been performed using commercial stainless steels but the obtained results contain the effect of solute interstitials (C and N). In this paper, the influence of Cr on the above both strengthening mechanism was discussed by using interstitial free ferritic stainless steel in which carbon and nitrogen are completely fixed as Ti(C,N). A previous paper has reported that the addition of chromium gives different influences to the Hall-Petch coefficient depending on the amount of Cr. However, our research has reveals the fact that the change of Hall-Petch coefficient is not due to the effect of chromium but due to small amount of carbon which exists as an impurity in ferritic stainless steels. It was concluded that chromium itself does not give any influence to the Hall-Petch coefficient of ferritic iron.

    本文言語英語
    ホスト出版物のタイトルTHERMEC 2011
    出版社Trans Tech Publications Ltd
    ページ2130-2133
    ページ数4
    ISBN(印刷版)9783037853030
    DOI
    出版ステータス出版済み - 2012
    イベント7th International Conference on Processing and Manufacturing of Advanced Materials, THERMEC'2011 - Quebec City, QC, カナダ
    継続期間: 8月 1 20118月 5 2011

    出版物シリーズ

    名前Materials Science Forum
    706-709
    ISSN(印刷版)0255-5476
    ISSN(電子版)1662-9752

    その他

    その他7th International Conference on Processing and Manufacturing of Advanced Materials, THERMEC'2011
    国/地域カナダ
    CityQuebec City, QC
    Period8/1/118/5/11

    !!!All Science Journal Classification (ASJC) codes

    • 材料科学一般
    • 凝縮系物理学
    • 材料力学
    • 機械工学

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