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Optimization of Electrodeposition Process Parameters on Wear Properties of Ni-Wc Coated Ferrous Alloy

Author : B S Praveen Kumar and K M Narayanappa

Pages : 223-227
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The aim of the research work was to optimize Ni-WC electrodeposition process parameters for high wear resistant coatings on ferrous bearing. Electrodeposition parameters such as electrolyte temperature (45, 50 and 55°C), stirring rate (200, 300 and 400 rpm), current density (3, 4 and 5 A/dm2), WC concentration in electrolytic bath (1, 2, 3g/l), wear load (15, 20, 25 N) and speed (60, 90, 120 rpm) were conducted for optimization based on Design of Experiments (DOE). ANOVA results showed the percentage contribution of influencing parameters for Ni-WC coatings as WC (45.96%), stirring rate (16.65%), current density (1.92%), temperature (1.6%), load (10.00 %) and speed (11.72%). According to response surface methodology, stirring rate 262.62 rpm, temperature 55 °C, current density 5 A/dm2, WC particles 4 g/l, load 24.19 N and speed 60 rpm are the optimized parameters for the high resistance of wear and low friction.

Keywords: Electrodeposition, Wear Resistant Coating, Bearings, Design of Experiments, ANOVA

Article published in International Journal of Current Engineering and Technology, Vol.7, No.1 (Feb-2017)

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