Influence of aging condition on tensile and fatigue fracture behaviour of aluminium alloy 6063

An Al-Mg-Si alloy 6063 was heat treated in the underaged, peak aged, and overaged conditions. The microstructures of the alloy in the different aging conditions were examined using transmission electron microscopy. Tensile and fatigue tests were carried out and the resulting fractures were studied u...

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Bibliographic Details
Published in:Materials science and technology 1991-11, Vol.7 (11), p.1010-1014
Main Authors: Jiang, D. M., Hong, B. D., Lei, T. C., Downham, D. A., Lorimer, G. W.
Format: Article
Language:English
Subjects:
Applied sciences
Exact sciences and technology
Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology
Metals. Metallurgy
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Summary:An Al-Mg-Si alloy 6063 was heat treated in the underaged, peak aged, and overaged conditions. The microstructures of the alloy in the different aging conditions were examined using transmission electron microscopy. Tensile and fatigue tests were carried out and the resulting fractures were studied using scanning electron microscopy. It has been found that the alloy shows different tensile and fatigue properties and different modes of fracture under different aging conditions. The results have been explained in terms of slip distribution and grain boundary strength. MST/1188
ISSN:0267-0836
1743-2847
DOI:10.1179/mst.1991.7.11.1010