PROPERTIES INVESTIGATION OF ALUMINUM-BASED COMPOSITES PROCESSED USING NEW METHODS OF SEVERE PLASTIC DEFORMATION AND THE FINITE ELEMENT METHOD

Abstract

This paper aims to investigate the properties of aluminum-based composite Al2O3/SiC ceramics using new severe plastic deformation (SPD) methods and the finite element method. This research work also focused on the accuracy of the simulation results in manufacturing reinforced Al2O3/SiC ceramic. The latest method was developed by repetitive press-roll forming (RPRF) for processing ceramic-reinforced composite materials. The simulations were carried out to validate the experimental results of the strength testing conducted for composites with the hybrid reinforcement by having ultimate tensile strength (UTS) values that correspond to 123 N/mm2, 130 N/mm2, and 124 N/mm2 for the hybrid composites of two layers, four layers, and six layers, respectively. This is the best result among processes developed, such as accumulative roll bonding (ARB). The experimental results prove that the SPD of the RPRF process can significantly increase the UTS and hardness values in aluminum matrix-based composites type AA1100/5052. Samples with SiC reinforcements have the highest mechanical properties compared to the other reinforcements (Hybrid and Al2O3), with a resulting UTS value of 163 MPa and a resulting hardness value of 46.42 HV. The application of this experiment is a plate matrix attached where the surface of the end face is sprinkled with ceramic Al2O3/SiC material as reinforcement.