Equal channel angular pressing and mechanical investigation of magnesium composite with aluminium oxide and silicon carbide as reinforcements

Abstract

In this experimental analysis pure magnesium based aluminium oxide and silicon carbide reinforced hybrid composite was prepared by stir casting process. The mechanical and metallurgical properties of magnesium composite before and after equal channel angular processing (ECAP) were analysed. The scanned electron microscopy (SEM) investigation reveals about the uniform distribution of aluminium oxide and silicon carbide reinforcement particles in the magnesium matrix composite. The results show that the tensile strength of magnesium matrix composite was improved drastically by the effect of ECAP process. Further the hardness property was also increased by the incorporation of silicon carbide reinforcement particle. All these results depicts that the hybrid magnesium composite can be developed as the best material where homogeneous mixture, improved hardness and ultimate tensile strength are of primary importance in automotive and aerospace applications.