Enhanced Hardness Property in the Development of Al-TiC Composites through P/M Techniques

Abstract

Powder Metallurgy is a continually and rapidly evolving technology, embracing most metallic and alloy materials with a variety of shapes. Weight percent of reinforcements and processing parameters plays a vital role in determining strength of the powder metallurgical parts. In this work, the effect of varying weight percent of particulate TiC reinforcement with elemental 6061 Aluminium alloy on mechanical properties of specimens processed through powder metallurgy has been investigated. Weight percent of TiC ranges from 1% to 10% and the specimens are compacted at 125 MPa and 175 MPa. With increase in the weight percent of TiC up to 5%, micro hardness and tensile strength value increases and there is a decrease in tensile strength value for a weight percent of 10 % TiC. Increase in compaction pressure from 125 MPa to 175 MPa, the density, hardness and tensile strength value increases.