Tribological Investigation of Composite Coating on AISI 52100 Alloy Steel Using Electrophoretic Deposition

This work focuses on producing TiC-GO coating on AISI 52100 steel to improve the tribological properties by Electrophoretic deposition (EPD) method. The parameters of this study are applied voltage, coating deposition time, composite solution concentration, and sintering temperature. Optimization of different combinations of TiC and GO is primarily found out and the best TiC-GO combination is selected by considering the least tribological response. In the next stage, the EPD parameters for the best are optimized by using the Taguchi L16 method. Microscopic and elemental analysis is done to confirm the presence of uniform composite coating (TiC-GO) on the surface of the substrate. The results revealed that the COF of the optimized combination of TiC-GO is 0.155 for a sliding distance of 350 m, which is very near to the predicted COF. The wear loss for the optimum combinations is also less compared to that of pure substrate.