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 journalArticle

15 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

ASJC Scopus subject areas

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

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