Friction surfacing mild-steel with Monel and predicting the coating parameters using fuzzy logic

Engineering components made of AISI 1012 are susceptible to stress corrosion cracking in marine environments, where more free chloride ions are present. The cladding of Monel over the surface of the AISI 1012 components improves the corrosion resistance. Friction surfacing is an emerging solid-state technique for coating consumables (mostly metallic materials) in the form of the rod over the solid substrate. In this study, FS trials were conducted as per central composite design with five levels of variation for each FS process parameters. Width and thickness of the coating were measured for all the friction surfaced specimens. Soft computing model relating the FS process parameters to the coating thickness and width was generated using the fuzzy logic technique. It is observed that the spindle speed and surfacing speed have an inverse relationship with coating parameters. Increasing the axial load increased the coating thickness and width. (C) 2017 Elsevier Ltd. All rights reserved.