Journal
MATERIALS CHARACTERIZATION
Volume 59, Issue 9, Pages 1168-1177Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.matchar.2007.09.006
Keywords
aluminum alloy; friction stir welding; solution treatment; artificial aging; tensile properties
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Funding
- All India Council for Technical Education (AICTE), New Delhi [8021/RID/NPROJ/RD-89/2002-03]
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This paper reports on studies of the influences of various post-weld heat treatment procedures on tensile properties of friction stir-welded AA6061 aluminum alloy joints. Rolled plates of 6-mm thick AA6061 aluminum alloy were used to fabricate the joints. Solution treatment, an artificial aging treatment and a combination of both were given to the welded joints. Tensile properties such as yield strength, tensile strength, elongation and joint efficiency were evaluated. Microstructures of the welded joints were analyzed using optical microscopy and transmission electron microscopy. A simple artificial aging treatment was found to be more beneficial than other treatment methods to enhance the tensile properties of the friction stir-welded AA6061 aluminum alloy joints. (C) 2007 Elsevier Inc. All rights reserved.
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