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Influence of aging treatment on mechanical properties of 6061 aluminum alloy
(ELSEVIER SCI LTD, 2010) Ozturk, F.; Sisman, A.; Toros, S.; Kilic, S.; Picu, R. C.
Aluminum-magnesium-silicon (Al-Mg-Si) alloys show medium strength, excellent formability, good corrosion resistance and are widely used in extruded products and automotive body panels. The major advantage of these alloys is their age hardening response during the paint baking process as well as the fact that they exhibit no yield point phenomenon and Ludering. In this study, the mechanical properties of a commercially available AA6061 alloy aged to various levels were studied. Peak-aged conditions were reached in this particular alloy after a 2 h heat treatment at 200 degrees C. The variation of the yield stress, ultimate tensile strength, ductility and strain hardening rate with aging time is measured and discussed in relation to the microstructural changes induced by the heat treatment. (C) 2009 Elsevier Ltd. All rights reserved.