Experimental Investigation of Wear Properties of Aluminium Hybrid Composite through Pin-On Disc Method.

Abstract

This research focuses on the experimental investigation of the wear behavior of Al 7075-T6 alloy reinforced with Silicon Carbide (SiC) and Zirconium Dioxide (ZrO₂) particles in an equal weight ratio of 5:5, prepared using the stir casting technique. The composite samples were processed with controlled stirring to ensure uniform dispersion of the reinforcements with in the aluminum matrix.X-ray Diffraction(XRD)analysis wasper formed to confirm the presence and distribution of SiC and ZrO₂ in the matrix. Wear testing was conducted using a Pin-on-Disc apparatus under various loads and sliding speeds to evaluate the material's wear resistance. The results indicate a significant enhancement in wear performance compared to the unreinforced Al 7075-T6 alloy, due to the presence of hard ceramic reinforcements that effectively reduce material loss during sliding. The study concludes that incorporating SiC and ZrO₂ in a 5:5 weight ratio improves the wear characteristic soft he aluminum composite, making it suitable forwear-critical applications like aerospace , aluminium casing .