Effects of powder hot-pressing process on mechanical properties of WCp/2024Al composites

2024 aluminum alloy matrix composites reinforced with tungsten carbide particle (WCp/2024Al) were fabricated by vacuum hot-pressing method. The effect of the forming temperature and WC particle size on the mechanical properties of the WCp/2024Al composites were carried by XRD, SEM and tensile testing. The results show that the forming temperature is one of the key factors that control the interfacial reaction of the WCp/2024Al composite. The products of the interfacial reaction lead to the strength and plasticity of the WCp/2024Al composite decline. The effects of WC particle size on the plasticity are more than that effects on the tensile strength of the WCp/2024Al composites. The elongation of the composites increases with the increasing of WC particle size.