Study of wear & microstructural behavior of hybrid aluminium metal matrix composite manufactured by stir casting technique

Abstract

Aluminium is one of the most widely used metals due to its desirable physical, chemical and mechanical properties and it characterizes an important category of technological materials. Because of its high strength-to weight ratio, besides other desirable properties e.g. high corrosion resistance, desirable appearance, nonmagnetic, non-sparking, non-toxic, ease of fabrication and high thermal and electrical conductivities, aluminium and its alloys are used in a wide variety of industrial applications. These properties led also to the association of aluminium and its alloys with transportation mainly with aircraft and space vehicles, containers and packaging and electrical transmission lines, construction and building. Nowadays Al-based composites are used due to their superior mechanical properties. The reinforcements are ceramic, metallic and non-metallic used in the form of particles, fibers, and laminates. The reinforcements added to MMC will improve the properties of the composite like yield strength, hardness, density and wear behavior. There are several studies done on the non-metallic and ceramic reinforcements. This paper attempts to study the different combination of reinforcing materials used in the processing of hybrid aluminium matrix composites and how it affects the wear performance & Microstructure of the materials.