Characterization and parametric optimization of tribological properties of Mo blend composite coating

Abstract

The aim of present work was to develop Mo-blend composite coating using atmospheric plasma spray technique and to optimize its tribological properties such as temperature, frequency and load as process parameters, using Taguchi L9 orthogonal array (OA). The SEM microstructures also help in confirming the optimal process conditions for tribological properties of a composite coating, while EDS was used to confirm the elemental peaks of composite coating. HRXRD was used to confirm the phase deposition of composite coating. Calculation and prediction of optimum process parameters were done by using raw data and signal to noise (S/N) ratio of ANOVA (Analysis of variance). The significant process parameters for COF according to their contribution percentage are frequency (51.20) followed by the load (30.36%), and temperature (17.12%). The percentage contribution of frequency (87.81%) was highest followed by temperature (2.69%) and load (2.53%) for weight loss.