Ex situ observation of microstructure evolution during abnormal grain growth in aluminum alloy

Hyung Ki Park, Hyung Gu Kang, Chang Soo Park, Moo Young Huh, Nong Moon Hwang

    Research output: Contribution to journalArticlepeer-review

    18 Citations (Scopus)

    Abstract

    The sequential microstructural evolution of abnormal grain growth in the aluminum alloy was traced by ex situ observation using electron-backscattered diffraction during secondary recrystallization. Near the growth front of abnormally growing grains, many three- or four-sided grains with a negative curvature, which had the same orientation as abnormally growing grains, were penetrating the surface, indicating that abnormal grain growth occurs dominantly by repeated events of triple-junction wetting. Also, abnormally growing grains were shown exclusively to have sub-boundaries.

    Original languageEnglish
    Pages (from-to)5218-5223
    Number of pages6
    JournalMetallurgical and Materials Transactions A: Physical Metallurgy and Materials Science
    Volume43
    Issue number13
    DOIs
    Publication statusPublished - 2012 Dec

    Bibliographical note

    Funding Information:
    This work was financially supported by POSCO Technical Research Laboratories.

    ASJC Scopus subject areas

    • Condensed Matter Physics
    • Mechanics of Materials
    • Metals and Alloys

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