Effect of Cr2N precipitation on deformed microstructure in high nitrogen austenitic stainless steel

Tae Ho Lee, Sung Tae Kim, Hae Jung Bang, Chang Seok Oh, Sung Joon Kim, Setsuo Takaki

    Research output: Contribution to journalArticlepeer-review

    Abstract

    The effect of Cr2N precipitation on deformed microstructure in high nitrogen austenitic Fe-18Cr-18Mn-2Mo-0.9N steel was investigated with a particular emphasis on deformation twinning. Based on the crystallographic analysis in the stereographic projection, the orientation relationship between austenite (γ) matrix and Cr2N was determined to be [110] γ/[1script m sign100]Cr2N and (11̄1) γ //(0001)Cr2N. The deformation twinning had {111} 〈112̄〉 crystallographic component similar to that of cellular Cr2N. The cellular Cr2N precipitates caused a different orientation dependence of deformation twinning: only one twinning system in the 〈111〉 grain was activated almost parallel to the growth direction of Cr2N.

    Original languageEnglish
    Pages (from-to)161-164
    Number of pages4
    JournalKey Engineering Materials
    Volume345-346 I
    DOIs
    Publication statusPublished - Jan 1 2007

    All Science Journal Classification (ASJC) codes

    • Materials Science(all)
    • Mechanics of Materials
    • Mechanical Engineering

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