A COMPARATIVE INVESTIGATION ON CAST AND AGING (T6) RESPONSE ON MECHANICAL AND DRY SLIDING WEAR BEHAVIOR OF Al7075/SiCP METAL MATRIX COMPOSITE
Abstract
The study focuses on the influence of SiC and heat treatment effect on mechanical and wear behavior of Aluminium Metal Matrix Composites (AMMCs), Al7075 is the matrix material and composites were prepared by varying the weight percentage of SiC. The prepared composites are divided into two groups Type A and Q samples while Type Q was artificially aged to T6 condition. In addition to the reinforcement, the hard intermetallic secondary phase that emerges due to heat treatment strengthens the AMMCs with a considerable degree of embrittlement. Both Type A and Q samples were characterized for various mechanical properties such as hardness, tensile strength, impact strength, etc. A new regression mathematical model was developed to predict the mechanical properties. Wear testing was done by varying load for a fixed distance and observed a good percentage of improvement in hardness, tensile strength, impact strength, and specific wear rate for 9% reinforced SiC AMMCs relative base alloy.
