Effect of extrusion ratio & extrusion temperature on mechanical properties of hot extruded hybrid composites of al6061/sic/graphite

Abstract

In this work hot extrusion of hybrid composites of Al6061/SiC/Gr was carried out at ratios of 2:1,3:1&4:1 & temperatures of 4500,5000,&5500c at various compositions of 0,2,4,6 &8 % of SiC and fixed amount of graphite i.e 2% using 200 tonn capacity press at a speed of 1mm/sec to investigate mechanical properties like tensile, compression & BHN and after solutionising and aging. It was found that at ratio 3:1 and temperature 5000c all the above three properties were found to be improved compared to extrusion.