Correlation of Structural and Mechanical Properties for Ultrasonically Stir Casted Al6061 Reinforced SiC-AlN Hybrid Metal Matrix Composites

Abstract

In our current investigation, Al6061-SiC-AlN composites were manufactured using the ultrasonic stir casting method. As reinforcement, silicon carbide (SiC) and aluminium nitride (AlN) [both 3 percent and 6 percent by wt.] were used to provide mechanical properties including tensile, compressive, and hardness. Al6061-SiC-AlN hybrid composite samples’ tensile strength, compressive strength, and hardness were measured. Al6061-SiC-AlN hybrid composites’ tensile, compressive, and hardness properties are calculated and compared to those of the matrix i.e. Al 6061 alloy. The tensile strength, compressive strength, and hardness all rose from 328 to 385 MPa, 145 to 178 MPa, and 302 to 724 VHN, respectively, with the addition of SiC and AlN nano-reinforcements. The suggested composite is compared to unreinforced Al6061 in terms of density and mechanical qualities such ultimate tensile strength, yield strength, impact strength, hardness, and wear characteristics. The results of the experimental examination showed that the produced hybrid composite, which contains 20% of the total reinforcing material, has no appreciable increase in impact strength but displays high hardness, high yield strength, and low wear rate.