Wear behavior of aluminum hybrid metal matrix composites (HMMCS) — A review

In the present study, based on the literature review, the wear behavior and mechanical properties of hybrid Aluminium Metal Matrix composite is discussed. These Aluminium Metal Matrix composites with multiple reinforcements (hybrid MMCs) are finding increased applications in the transport, aerospace, marine, automobile and mineral processing industries, because of improved mechanical and tribological properties and hence are better substitutes for single reinforced composites. The widely used reinforcing materials for these composites are silicon carbide, aluminum oxide and graphite in the form of particles or whiskers. The garnet particles reinforced aluminum composites can be tailored and engineered with specific required properties for specific application requirements, which increases the wear resistance with increase in garnet content. Effect of fiber orientation, heat treatment, ageing, graphite particles, processing methodology, load and speed on the wear rate is discussed.