Tribological behaviour of electrodeposited ni sic and ni tio2 nanocomposite coatings

Abstract

Presently, all manufactured components require a coating, to newlineensure the desirable appearance, the necessary protection against corrosion, newlinestone chipping, scratch, abrasion or chemical attack. The purpose of applying newlinecoatings to the metallic component is to increase its hardness, corrosion, and newlinethe wear resistance with minimum cost in the automotive and aerospace newlineindustry. The electroplating is the basic process of producing coating on a newlinemetal surface to increasing the hardness, wear resistance and improving newlinesurface uniformity. Electrodeposition of Ni-SiC and Ni-TiO2 nanocomposite newlinecoatings provide more hardness, wear resistance and corrosion resistance to newlinethe coated products. And also they provide better results than conventional newlinepure metallic coatings. newlineIn this research work the Pulse electrodeposition of Ni-SiC and newlineNi-TiO2 nanocomposite coating in a Wattand#8223;s bath on AISI 1022 Carbon Steel newlineand Cast Iron cylinder liner specimens. In this experiment, SDS surfactant is newlineused in electrolyte, at the same time pH 4 and bath temperature 55 °C are newlinemaintained. The experimental process parameters were identified based on newlinethe literature review and they were optimized with the help of response newlinesurface methodology (RSM) - grey relational analysis (GRA) technique for newlinethe specimen of AISI 1022 Carbon Steel and response surface methodology newline(RSM) was for CI cylinder liner specimen. newline