Abstract
The five layer aluminum sheet had been processed by alternating 7075 and 1100 pure aluminum sheets of controlled volume fraction at high temperature using the ARB technique. This work established that hot roll bonding of high strength 7075 aluminum alloy is perfect when rolled with pure aluminum. The rolling work was done at the solution temperature of the 7075. The strength and elongation of the roll bonded material was found to be better than the initial five layer clad sheet. In the fifth cycle of ARB, the yield strength for the same temper was 21 and 11% higher than the clad sheet in F and T6 temper, while the UTS in the F and T6 tempers was 26 and 11.5% higher. Elongation, which is a property of toughness also increased up to the fifth cycle were it began to level down to values equal or less than the preceding cycle.
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