The effect of wear parameters and heat treatment on two body abrasive wear of Al-SiC-Gr hybrid composites

The two body abrasive wear behavior of stir cast Al 6082-SiC-Gr (Al-SiC-Gr) hybrid composites was investigated and compared with its matrix alloy and SiC reinforced composites. The experiments were done on pin-on-disc equipment at test conditions of 5-15 N load, 50-75 m sliding distance and 200 µm grit size. The wear results indicate that the hybrid composites yielded better wear resistance compared to matrix alloy and SiC reinforced composites. At higher load and sliding distance, wear improvement of Al-SiC-Gr composites was 16.4% and 27% in as cast and T6 heat treated condition respectively. The worn surface analysis of tested samples and grit papers was done by using scanning electron microscope (SEM).