STP551: Directionality of the Grain Boundary Hydride in Zircaloy-2

    Kawanishi, H
    Research assistant, associate professor, and professor, University of Tokyo, Tokyo,

    Ishino, S
    Research assistant, associate professor, and professor, University of Tokyo, Tokyo,

    Mishima, Y
    Research assistant, associate professor, and professor, University of Tokyo, Tokyo,

    Pages: 11    Published: Jan 1974


    Abstract

    The correlation between hydride orientation and texture has been studjed. Previous_work showed that there are grain boundary “habits” such as {101¯1}, {101¯3}, and {101¯5} for hydride precipitation in Zircaloy-2. By taking into account the stereographic configuration of these habits, the fn-values of various specimens have been evaluated. Comparison between fn-values obtained metallographically and by the present method gives excellent agreement.

    The mechanism of stress reorientation of hydride and the dependence of stress reorientation on stress direction are also discussed.

    Keywords:

    hydrides, texture, grain boundaries, directionality, Zircaloy-2, poles, reactors, cladding tubes, precipitation (chemistry), irradiation zirconium alloys


    Paper ID: STP32116S

    Committee/Subcommittee: B10.02

    DOI: 10.1520/STP32116S


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