Integral mean curvature analysis of 3D grain growth: Linearity of dV/dt and grain volume

BR Patterson, RT DeHoff, CA Sahi, J Sun, Jette Oddershede, Florine Lena Bachmann, E Lauridsen, Dorte Juul Jensen

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    Abstract

    The volumetric growth rate of individual grains has been found to be directly proportional to the individual grain volume V as dV/dt = β(Vo-V). This simple result is explained through the DeHoff relationship dV/dt = −kMs between growth rate and the integral mean curvature of individual grains, Ms, combined with the experimentally observed relationship between Ms and grain volume, Ms = α(Vo-V). These relationships have now been observed consistently in both 3D grain growth simulations and experiments. This paper describes the relationships among these kinetic and geometric grain characteristics that provide this simple description of 3D grain growth.
    Original languageEnglish
    Article number012020
    JournalI O P Conference Series: Materials Science and Engineering
    Volume580
    Issue number1
    Number of pages8
    ISSN1757-8981
    DOIs
    Publication statusPublished - 2019
    Event40th Risø International Symposium on Material Science: Metal Microstructures in 2D, 3D, and 4D - Roskilde, Denmark
    Duration: 2 Sept 20196 Sept 2019

    Conference

    Conference40th Risø International Symposium on Material Science: Metal Microstructures in 2D, 3D, and 4D
    Country/TerritoryDenmark
    CityRoskilde
    Period02/09/201906/09/2019

    Bibliographical note

    GA no. 788567

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