A Dissertation on Wear Behaviour of Aluminium & Brass

Wear is major problem in industry and its direct cost is estimated to vary between 1 to 4% of gross national product. Therefore many efforts have been made to produce more durable materials and techniques to reduce the wear of the tools and the engineering components. These include modification of bulk properties of the materials, surface treatments and application of the coating, etc. over the last few years many efforts have been made to understand the behavior of the surfaces in sliding contact and the mechanism, which leads to wear.

The applications of the Aluminum, Mild steel composites for the machine parts, particularly due to some very attractive characteristics such as high strength to weight ratio, excellent cast ability, pressure tightness, low coefficient of thermal expansion, good thermal conductivity, good mechanical properties and corrosion resistance The composites are mainly used in aerospace, automobiles, marine engineering and turbine compressor engineering applications. MMCs are used for light weight as well as high temperature applications.

MMCs found wide applications in marine castings, motor cars & lorry fittings/pistons & engine parts, cylinder block and heads, cylinder liners, axles & wheels, rocker arms, automotive transmission casings, water cooled manifolds and jackets, piston for internal combustion engines, pump parts, high speed rotating parts and impellers etc.