tailoring microstructure and mechanical properties of nano/ultrafine grained aa6063 alloy processed by accumulative roll bonding process

In the present work, accumulative roll bonding (arb) was used as an effective method for processed of nano/ultrafine grained aa6063 alloy. microstructural characteristics indicate considerable grain refinement leading to an average grain size of less than 200 nm after 7 arb cycles. texture analysis showed that 1-cycle arb formed a strong texture near copper component ({112}<111>). however, texture transition appeared by increasing the number of arb cycles and after 7-cycle of arb, the texture was mainly developed close to rotated cube component ({100}<110>). the results originated from mechanical properties indicated a substantial increment in strength and microhardness besides a meaningful drop of ductility after 7 arb cycles.