Estimation of elastic stiffness in austenitic stainless steels

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    Abstract

    In austenitic stainless steels, the Young's modulus ratio E100/Ehkl in single crystal is expressed as a function of the orientation parameter Γ: E100/Ehkl=1-2.027Γ. Under the presumption that this relationship stands up on commercial stainless steels with various chemical composition, the elastic stiffness cij was calculated as follows in connection with Young's modulus Ep of poly crystal austenitic stainless steels: C11=1.0311Ep, c12=0.6864Ep, c44=0.6246Ep. As a result, the elastic stiffness ratio c12/c44 and the anisotropy parameter Ai (=2c44/(c11-c12)), that are required in the dislocation analysis by modified Williamson-Hall method, are estimated constant at c12/c44=1.099 and Ai=3.624.

    Original languageEnglish
    Pages (from-to)31-34
    Number of pages4
    JournalZairyo/Journal of the Society of Materials Science, Japan
    Volume70
    Issue number1
    DOIs
    Publication statusPublished - Jan 15 2021

    All Science Journal Classification (ASJC) codes

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

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