Effect Of Re-Solution Heat Treatment Time On The Impact Of An Aluminum Alloy For Automotive Application

Sarah Nadiah , Abdul Halim (2008) Effect Of Re-Solution Heat Treatment Time On The Impact Of An Aluminum Alloy For Automotive Application. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

This study presents the effect of re-solution heat treatment of 6061-T6 aluminum alloy. Solution heat treatment was done on the material with different heating time; one to four hour. Then, specimens were quenched in water. All samples were tested with Brinell hardness and Charpy impact test. Brinell hardness test result showed that there was no significant different in the hardness value obtained between each time sample. Compared to the non-heat treated sample, the hardness values for heat treated sample were decreased. Charpy impact test result showed that there was slightly increasing value of toughness for one hour, two hour and three hour sample but then decrease for four hour sample. Compared to the non-heat treated specimen, the impact energy for every sample was increased. Microstructure characterizations that were carried out by optical microscope showed that 0 (Mg2Si) particles dispersed in the supersaturated solution of a (AI) at room temperature. The result showed that the maximum hardness obtained by sample of 2 hours and maximum impact toughness was obtained by sample of 3 hours.

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