An Experimental Investigation on Hardness and ShearBehaviorofAluminum, Silicon Carbide, and GraphiteHybrid Composite with and without Cryogenic Treatment

The present investigation aims at evaluating the hardness andshear strength of aluminum-silicon carbide-graphite hybrid composite with and without cryogenic treatment. In this composite Al6061 is used as matrix material with varying SiC quantity from 2.5wt% to 10 wt% and varying graphite quantity from 1wt% to 4 wt%. The composites were fabricated by using stir casting technique. EDS and XRD testswere carried out to know the composition and phase identification of the composite sample. Microstructure analysis was carried out to study the structure of the composite with and without cryogenic treatment. (c) 2017 Elsevier Ltd. All rights reserved.