Mechanical and Electrical Properties of Aluminium Alloy by Cryorolling Process

Title & Authors
Mechanical and Electrical Properties of Aluminium Alloy by Cryorolling Process
Wangkasem, P.; Rojananan, S.;

Abstract
The mechanical and electrical properties of aluminium alloy 6061 are reported in this present work. Aluminium alloys were homogenized at $\small{550^{\circ}C}$, for 5 hours and cooled in the furnace. The different thickness reductions of 60-90% on homogenized aluminium alloy plates were achieved by cryo-rolling. Later, the as rolled samples were aged by solution treatment at the temperatures of $\small{520^{\circ}C}$ for 1 hour, water quenched; subsequently aged at $\small{160^{\circ}C}$ for 8-24 hours and partial aged (not solution treatment) at $\small{160^{\circ}C}$ for 8- 24 hours. Mechanical and electrical properties of samples were investigated. The experimental result showed that the microhardness of cryo-rolled samples were increase with increasing the percentage of the thickness reduction. Moreover, the microhardness of cryo-rolled, aged by solution treatment samples were higher than those of the cryo-rolled and cryo-rolled, partial aged samples. The cryo-rolled alloys subjected to full aged at $\small{160^{\circ}C}$ for 24 hours exhibited the hardness of 125 HV and electrical conductivity values was 45.76 %IACS and the cryo-rolled alloys subjected to partial aged at $\small{160^{\circ}C}$ for 20 hours exhibited the hardness of 67 HV and electrical conductivity values was 49.67 %IACS.
Keywords
Aluminium alloys;cryorolling;aging;
Language
English
Cited by
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