Investigation of mechanical properties and microstructure for Al/Cu/SiC composite produced by Cross Accumulative Roll Bonding process

In this investigation, for the first time, used from Cross Accumulative Roll Bonding to produced Al/Cu/SiC composite. Microstructure and mechanical properties of produced composite were evaluated by using of optic microscopy, scanning electron microscopy, uni-axial tensile test, microhardness, respectively. Results of microstructure showed that after eight pass, has a perfectly uniform distribution of reinforcing and strong bond between particles. Tensile strength fell at the first and then continuously increased. Also trend of tensile strength and elongation was similar. Microhardness value for aluminum and copper layers of produced composite 1469% and 163% enhanced compare to annealed samples, respectively. Investigation of tensile fracture surface after eight pass showed that the mechanism of fracture in shear ductile for Al matrix.