Abstract
In the present research, Cu/Ni multilayer composite was produced by accumulative roll bonding (ARB) process. The microstructure evolution and mechanical properties of the multilayered Cu/Ni composites were evaluated within different cycles of ARB process. It was observed that as the number of ARB cycles increased, the thickness of Ni layers was decreased and synchronous necking and fracturing occurred. After six ARB cycles, a multilayer Cu/Ni composite with homogeneously distributed fragmented nickel layers in Cu matrix was achieved. It was found that with increasing strain during ARB cycles strength and elongation of these composites increased. The observations of fracture surfaces after tensile tests revealed that rupture mode of Cu/Ni multilayer composites is ductile rupture with shear dimples.
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