The objective of this work is to reinforce Tungsten Carbide (WC) onto the surface of AA 6063 aluminium alloy using Gas Tungsten Arc (GTA) as heat source and investigate the hardness and wear properties. Based on number of trials, optimum GTA heat source parameters are finalized with reference to the proper fusion of base metal. It is found that the hardness is reduced after the application of heat. After the reinforcement of WC, the hardness returns back to the base metal value. In order to further to improve the properties, the reinforced alloy is heat Treated. The Microhardness of the reinforced and aged AA 6063 is increased by 50% with respect to base metal. The wear resistance of the reinforced surface is improved by 52% with respect to base metal. Characterization techniques like SEM, EDX and XRD are done and the presence of WC is confirmed. © 2017 The Indian Institute of Metals - IIM
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Shanmugasundaram A., Dr. Sanjivi Arul, and R. Sellamuthu, “Investigating the Effect of WC on the Hardness and Wear Behaviour of Surface Modified AA 6063”, Transactions of the Indian Institute of Metals, vol. 71, no. 1, pp. 117-125, 2017.