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

Akira Hironaka, Nobuo Nakada, Toshihiro Tsuchiyama, Setsuo Takaki

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    7 Citations (Scopus)

    Abstract

    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.

    Original languageEnglish
    Title of host publicationTHERMEC 2011
    PublisherTrans Tech Publications Ltd
    Pages2130-2133
    Number of pages4
    ISBN (Print)9783037853030
    DOIs
    Publication statusPublished - 2012
    Event7th International Conference on Processing and Manufacturing of Advanced Materials, THERMEC'2011 - Quebec City, QC, Canada
    Duration: Aug 1 2011Aug 5 2011

    Publication series

    NameMaterials Science Forum
    Volume706-709
    ISSN (Print)0255-5476
    ISSN (Electronic)1662-9752

    Other

    Other7th International Conference on Processing and Manufacturing of Advanced Materials, THERMEC'2011
    Country/TerritoryCanada
    CityQuebec City, QC
    Period8/1/118/5/11

    All Science Journal Classification (ASJC) codes

    • General Materials Science
    • Condensed Matter Physics
    • Mechanics of Materials
    • Mechanical Engineering

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