Two body abrasive wear of Al-Mg-Si hybrid composites: Effect of load and sliding distance

Abstract

The present study investigates on the two body abrasive wear behavior of Al-6082 alloy,Al 6082 alloy-10% SiC (Al-SiC) composites and Al 6082 alloy – 5 % SiC-5 % Gr (Al-SiC-Gr) hybrid composites. These composites were prepared by stir casting process. The wear tests of these materials were conducted at load of 5 – 15 N and sliding distance of 50 – 75 m at grit size of 200 μm. The wear response influenced by these parameters was analyzed and compared with each other. The results show that graphitic composites yielded better wear resistance compared to alloy and single SiC reinforced composite. Worn surfaces of samples were observed by using scanning electron microscope (SEM) and it was revealed that the wear grooves appeared to be narrow and shallow in case of hybrid composites.