Influence of Ti₃C₂T_x addition on the corrosion behaviour and tribological properties of electrodeposited Ni-W-Ti₃C₂T_x nanocomposite coatings

Present study deals with the comparative wear and corrosion behaviour of electrodeposited Ni-W-Ti3C2Tx composite coatings. The composite coatings were prepared by direct current electrodeposition method in bath with different amounts of Ti3C2Tx. Reciprocating friction was used to analyse the wear behaviour of the coating. The corrosion resistance of all coatings was examined by potential polarisation and electrochemical impedance spectroscopy. The results show that the wear rate and friction coefficient are the lowest for Ni-W-20Ti3C2Tx composite coating among all the coatings, which is attributed to the lubrication effect of Ti3C2Tx. Moreover, the Ti3C2Tx can effectively improve the corrosion resistance of Ni-W alloy coating, and the optimum addition of 20 mg/L is reached, which is determined by Ni (111) texture and surface quality.