Fabrication and Corrosion Behaviour of Aluminium Metal Matrix Composites – A Review

Abstract

Metal matrix composites (MMCs) corrosion nature is discussed with significance in regard to MMCs corrosion behavior with MMCs electrochemical and chemical properties. Galvanic corrosion between base metal and reinforcement influences the corrosion process in MMCs. The corrosion behaviour of Aluminium Metal Matrix Composites (AMMCs) reinforced with carbide and other solid waste is reviewed. AMMCs are capable of admitting the assault of corrosion over the base metal. AMMC’s corrosion type of behaviour is localized with galvanic corrosion, the intermetallic phase between base alloy and reinforcement, micro cracks, voids, are the corrosion-influencing factors. The corrosive action of solid carbide-reinforced AMMCs (Aluminum Metal Matrix Composites) and other solid waste is analysed. The AMMCs have strong mechanical and tribological characteristics but no achievement in the effects of corrosion. Coatings methods are used to enhance the behaviour of AMMCs in corrosion.

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