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

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 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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JO - Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science

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SN - 1073-5623

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

Abstract

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