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Bochniak, W.
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Publications (4/4 displayed)
- 2015Aging behaviour of AA6061/SiC<inf>p</inf> composites produced by direct extrusion with a reversibly rotating die methodcitations
- 2014Aging behaviour of AA6061/SiCp composites produced by direct extrusion with a reversibly rotating die method
- 2012AlMg/SiC Metal Matrix Composite under Fatigue and Creep Conditions
- 2012Damage analysis of Al(Mg)/SiC composites under fatigue conditions
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article
Aging behaviour of AA6061/SiCp composites produced by direct extrusion with a reversibly rotating die method
Abstract
This paper discusses the influence of thermal treatment parameters on mechanical properties of AA6061+x% vol. SiCp (x = 0, 2.5, 5, 7.5, 10) composites. The composites were consolidated via powder metallurgy processing using the unconventional method of extrusion (the KoBo method). In order to establish the optimum parameters of the heat treatment two different temperatures of supersaturation (530 and 558 oC) were applied. The aging curves were determined at various aging temperatures such as 140, 160, 180 and 200 oC. The effects of applied parameters were studied using the microstructure observations and hardness measurements. Obtained results show that the solution treatment at 530 oC is sufficient to complete dissolution of the precipitates. Higher temperature of the process resulted in accelerating the aged-hardening. The suitable age treating parameters for the AA6061-5 vol. % SiCp composites were 160 - 180 oC for 12 - 16 hours.