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Subject

Analysis of Microstructure and Mechanical Properties According to Heat Treatment Conditions in GMAW for Al 6061-T6 Alloy
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Al 6061-T6 합금의 MIG 용접 후 열처리조건에 따른 미세조직 및 기계적 물성 분석

논문 기본 정보

Type
Academic journal
Author
Chan Kyu Kim (창원대학교) Young Tae Cho (창원대학교) Yoon Gyo Jung (창원대학교) Shin Hyun Kang (이엠코리아)
Journal
The Korean Welding & Joining Society Journal of Welding and Joining Vol.34 No.4 KCI Accredited Journals
Published
2016.8
Pages
34 - 39 (6page)

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Analysis of Microstructure and Mechanical Properties According to Heat Treatment Conditions in GMAW for Al 6061-T6 Alloy
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Abstract· Keywords

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Recently, aluminum alloy has used various industry, such as automobile, shipbuilding and aircraft because of characteristics of low density and high corrosion resistance. Al 6061-T6 is heat treatment materials so it has high strength and mostly used for assembly by mechanical fastening such as a bolting and riveting.
In GMA (Gas Metal Arc) welding of alloy, some defects which are hot cracking, porosity, low-mechanical properties and large heat affected zone is generated, because of high heat conductivity. It reduces mechanical properties.
In this study, the major factor effected on properties are analyzed after welding in Al 6061-T6 in GMAW, then optimize heat treatment conditions. Plate of Al 6061-T6 with a thickness of 12 mm is welded in V groove and applied welding method is butt joint. Mechanical properties and microstructure are analyzed according to heat treatment condition. Tensile strength, microstructure and Hardness are evaluated. Result of research appears that Al 6061-T6 applied heat treatment show outstanding mechanical properties.

Contents

Abstract
1. 서론
2. 실험 방법
3. 실험 결과
4. 결론
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UCI(KEPA) : I410-ECN-0101-2017-581-000990268