An Investigation into the Wear Behaviour of a Hybrid Metal Matrix Composite Under Dry Sliding Conditions Using Taguchi and ANOVA Methods

The aim of this study is to examine the wear resistance of fabricated aluminium hybrid metal matrix composites in dry sliding wear conditions. Aluminium hybrid metal matrix composites are made up of a metallic alloy as the primary phase and two or more reinforcement materials as the secondary phase, which improves the composite wear resistance. The current research focuses on the tribological behaviour of an aluminium alloy reinforced with a 9% hybrid composite (4.5% SiC and 4.5% flyash) under dry sliding conditions using a pin-on-disc machine. The wear behaviour of the hybrid AMMC was investigated using L 9 experiments with varying parameters such as applied load ranges of 25–75 N, in increments of 25 N, sliding velocities of 1 to 3 m/s, and sliding distances of 500 to 1500 m. In order to understand the contribution of wear parameters, the experimental results were analysed using Taguchi and ANOVA techniques. A microstructural examination shows that the hybrid reinforcement particles are evenly dispersed in the matrix alloy. The wear loss and coefficient of friction increased with increasing load at all sliding velocity and sliding distance combinations, as shown by the counter plots.