Corrosion is the deterioration of a material due to dissolution, leaching, and chemical or electrochemical reaction with the environment. Corrosion occurs locally or globally depending upon the environmental conditions. In this study, the corrosion of metal matrix composite is shown. The corrosion behaviour of different metal matrix composite is studied. Although Metal matrix composite offers greater improved performance, they can also suffer problems like corrosion when exposed to corrosive environment. Due to the corrosion, the composite may lose their strength and leads to failure of components.Corrosion studies have been conducted onaluminium MMCs reinforced with graphite, siliconcarbide, alumina, boron and mica in the form ofparticles, fibers, whiskers or monofilaments. Thepublished literature on the corrosion of aluminiumbased composites is often contradictory. This is dueto the fact that there is a variety of aluminium alloymatrices and reinforcement type combinations, which may exhibit completely different corrosion behaviour. Hence, the metal matrix composites are moresusceptible to corrosion attack than the matrixalloy.
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