Abstract
The objective of this investigation is to explore the mechanical and wear characteristics of heat-treated hybrid metal matrix composites (MMCs) comprising Al6061, 5 wt.% graphite and different fractions of Titanium Carbide. In this, composites of different configurations were prepared by employing liquid metallurgy technique. The accumulation of graphite was kept constant that is 5 wt.% while TiC was varied from 0% to 8 wt.% in a stage of 2% and are subjected to T6 heat treatment. At first, composites were exposed to solutionising heat treatment at 530°C for 8 h and followed by quenching in ice and water. Artificial ageing of quenched composites was performed for an interval of 4-10 h in a step of 2 h. The role of heat treatment and ageing behaviour of composites on mechanical and wear characteristics were investigated and compared with un-heat treated. The result shows superior hardness and wear properties of MMCs for T6 heat treatment.
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