[[alternative]]Studies on the Mechanical Properties and Corrosion Wear Behavior of SiC<p>/A390 Al-matrix Composites

[[abstract]]The primary purpose of this research was to investigate the effects of SiC particles (SiC<p>) size (46μm、80μm ) and the amount of reinforcements (5wt%、10wt%), solid solution treatment (480℃,3 hours), articificial aging (150℃, 1、3、10 hours) and the environments of corrosion wear (distilled water、3.5wt% NaCl solution) on the mechanical properties and corrosion wear behavior of SiC<p>/A390 Al-matrix composites. The results show that the increasing of SiC<p> size and the amount of reinforcements increased the hardness and the corrosion wear resistance of SiC<p>/A390 Al-matrix composites. At 5wt% reinforcements , the increasing of the SiC<p> size increased the tensile strength, but at 10wt% the tensile strength was decreased. The tensile strength of A390 aluminum alloy was increased with the increasing of the holding time of artificial aging. For SiC<p>/A390 Al-matrix composites, the holding time of artificial aging has no significant influence on the tensile strength and the corrosion wear resistance. The corrosion wear resistance of SiC<p>/A390 Al-matrix composites and A390 aluminum alloy in the distilled water was better than that in the 3.5wt% NaCl solution. However, the corrosion resistance decreased with the increasing of the amount of the SiC<p> reinforcements.