An Experimental Investigation on Mechanical and Tribological Properties of Metal Matrix Composites Fabricated with Waste Aluminum, SAC, and CDPF via Stir Casting

This study focuses on combining spent alumina catalyst (SAC) with carbonized date palm fiber (CDPF) to create a hybrid combination that is integrated into a metal matrix using waste aluminum. The research takes a thorough approach to analyzing the mechanical and tribological characteristics of the produced hybrid composite material. The stir casting process is used to create five samples of scrap aluminum reinforced with SAC (6.25–1.25%) and CDPF (1.25–6.25%). The goal of this strategic volume percentage change is to improve and fine-tune the mechanical and tribological performance of the generated composite materials. By adding 1.25% SAC and 6.25% CDPF to waste aluminum, the mechanical properties have been considerably improved. As a consequence, tensile strength has increased by 21.84%, microhardness has increased by 32.12%, and toughness has increased by 24.54%. Further in the wear investigation, the decrease in coefficient of friction and optimal reduction in rate of wear. In conclusion, these hybrid reinforcements significantly increase both the tribological and mechanical characteristics of metals while having no substantial negative impacts on humans or the ecosystem.