Influences of post-weld heat treatment on tensile properties of friction stir-welded AA6061 aluminum alloy joints

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 trea...

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Veröffentlicht in:Materials characterization 2008-09, Vol.59 (9), p.1168-1177
Hauptverfasser: Elangovan, K., Balasubramanian, V.
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description 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.
doi_str_mv 10.1016/j.matchar.2007.09.006
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source Elsevier ScienceDirect Journals Complete
subjects AGING
ALUMINIUM ALLOYS
Aluminum alloy
Applied sciences
Artificial Aging
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
FRICTION
Friction stir welding
HEAT TREATMENTS
Joining, thermal cutting: metallurgical aspects
MATERIALS SCIENCE
Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology
Metals. Metallurgy
MICROSTRUCTURE
OPTICAL MICROSCOPY
Phase diagrams and microstructures developed by solidification and solid-solid phase transformations
Physics
PLATES
Solidification
Solution treatment
TENSILE PROPERTIES
TRANSMISSION ELECTRON MICROSCOPY
WELDED JOINTS
WELDING
YIELD STRENGTH
title Influences of post-weld heat treatment on tensile properties of friction stir-welded AA6061 aluminum alloy joints
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