Constitutional liquation during dissimilar friction stir welding of Al and Mg alloys

A dissimilar friction stir weld of Al alloy 1050 and Mg alloy AZ31 was produced. The weld had a large volume of intermetallic compound Al 12Mg 17 and significantly higher hardness in the weld center. The present study suggests that constitutional liquation resulted in the intermetallic compound Al 1...

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Bibliographic Details
Published in:Scripta materialia 2004-05, Vol.50 (9), p.1233-1236
Main Authors: Sato, Yutaka S., Park, Seung Hwan C., Michiuchi, Masato, Kokawa, Hiroyuki
Format: Article
Language:English
Subjects:
Aluminium alloy
Applied sciences
Constitutional liquation
Exact sciences and technology
Friction stir welding
Joining, thermal cutting: metallurgical aspects
Magnesium alloy
Metals. Metallurgy
Welding
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Summary:A dissimilar friction stir weld of Al alloy 1050 and Mg alloy AZ31 was produced. The weld had a large volume of intermetallic compound Al 12Mg 17 and significantly higher hardness in the weld center. The present study suggests that constitutional liquation resulted in the intermetallic compound Al 12Mg 17 in the weld center.
ISSN:1359-6462
1872-8456
DOI:10.1016/j.scriptamat.2004.02.002