Effect of WC addition in Al7075 alloy to prepare the Aluminium matrix composite via liquid metallurgy route

mechanical engineering

Aluminium based metal matrix composites (AMMCs) are advanced materials having the properties of high specific strength and modulus, greater resistance, high elevated temperature and low coefficient of thermal expansion. These composites spread their applications in the field of automobiles, aerospace, defence, cutting tool materials etc. In the present work an attempt has made to synthesis the Al7075 matrix with harder ceramic particulates of Tungsten Carbide (WC). The method used to produce is the low cost efficient stir casting method. To achieve a homogeneous distribution of the reinforcement without any wetting agent a two step introduction of reinforcement was adopted. The prepared composites were subjected to characterization of SEM/EDX which reveals the fair uniform distribution of the ceramic particulates over the matrix

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