Abstract
Processes with severe plastic deformation (SPD) may be defined as metal forming processes in which ultra-large plastic strain is introduced into a bulk metal in order to create ultra-fine grained (UFG) metals. Accumulative roll bonding (ARB) is a SPD process that may be defined as multisteps rolling process in order to create high strength metals with UFG structure. In this study, ARB process with inter-cycle annealing is carried out on the commercial purity aluminium (AA1050) sheet up to 13 cycles. The purpose of the present study is investigation of microhardness behavior and microstructural evolution in the ARB processed AA1050 sheet. Micro-Vickers hardness measurement is carried out throughout thickness of the ARB processed sheets. In addition, with increasing ARB cycles the grains size is reduced in nanometer level.
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