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

doi:10.1007/s11661-012-1334-y

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

* Honorary professors

Research output: Contribution to journal › Article › peer-review

16 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 language	English
Pages (from-to)	5218-5223
Number of pages	6
Journal	Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science
Volume	43
Issue number	13
DOIs	https://doi.org/10.1007/s11661-012-1334-y
Publication status	Published - 2012 Dec

ASJC Scopus subject areas

Condensed Matter Physics
Mechanics of Materials
Metals and Alloys

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Ex situ observation of microstructure evolution during abnormal grain growth in aluminum alloy. / Park, Hyung Ki; Kang, Hyung Gu; Park, Chang Soo; Huh, Moo Young; Hwang, Nong Moon.

In: Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science, Vol. 43, No. 13, 12.2012, p. 5218-5223.

Research output: Contribution to journal › Article › peer-review

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AU - Kang, Hyung Gu

AU - Park, Chang Soo

AU - Huh, Moo Young

AU - Hwang, Nong Moon

N1 - Funding Information: This work was financially supported by POSCO Technical Research Laboratories.

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AB - 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.

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

Abstract

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