Microstructure and mechanical properties of Al-Cu composite produced by accumulative roll bonding and folding (ARBF)
by Saeed Khademzadeh; Mohammad Reza Toroghinejad; Fakhreddin Ashrafizadeh; Nader Parvin
International Journal of Microstructure and Materials Properties (IJMMP), Vol. 10, No. 3/4, 2015

Abstract: Aluminium-copper multilayered composite was successfully produced by a new technique of severe plastic deformation composed of accumulative roll bonding and folding (ARBF). Microstructure evolution of composites was verified by optical and scanning electron microscopy. Mechanical properties of the multilayered composite were evaluated using microhardness measurement and tensile testing. By increasing the cycles of process, strength, microhardness and elongation of these composites increased, and after a certain number of cycles, copper layers were necked and fractured. Fracture surfaces, after tensile tests, were examined by scanning electron microscopy. Fractography revealed evidence of a combination of failure mechanisms including cleavage, ductile failure and intergranular fracture.

Online publication date: Fri, 06-Nov-2015

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