Synthesises and Characterization of Al 6061-Graphene-Silicon Carbide Hybrid Composites by Powder Metallurgy Route

Abstract

As one of the most essential industrial and engineering materials aluminium 6061 have been extensively used in automobile industry and many engineering applications due to which impending properties like low density, good structural rigidity, freeze ability to incorporate and enhance the strength by addition of various reinforcing materials. The essential criteria is enhancing the property without sacrificing the ductility is always challenging in aluminium and its alloys based composites in the recent years, enormous research carried on ceramic based and carbon based reinforcement material used in Al MMC. But combination of both is never tried so far due to lack of processing methods the current research work is carried out to process synthesis and perform the characterizations of Al 6061 matrix with grapheme of flake size 10 micron and silicon carbide of particle size is 20 micron as reinforcement combinations in various proportions (Wt.%) which will carried out through powder metallurgy approach. The powders will be processed through ultrasonic liquid processing methods and mixtures are ball milled by adding silicon carbide particles by uni-axial hot compaction. Thus prepared compacts are sintered and mechanical properties like hardness, density are investigated as a function of silicon carbide and graphene concentration (weight fraction). Relevant strengthen the mechanism involve in the Al 6061–graphene- silicon carbide composites in comparison with monolithic Al 6061 alloy are discussed.