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

Abstract

Present study deals with the comparative wear and corrosion behaviour of electrodeposited Ni-W-Ti₃C₂T_x composite coatings. The composite coatings were prepared by direct current electrodeposition method in bath with different amounts of Ti₃C₂T_x. 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-20Ti₃C₂T_x composite coating among all the coatings, which is attributed to the lubrication effect of Ti₃C₂T_x. Moreover, the Ti₃C₂T_x 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.

KEYWORDS:

• Ni-W-Ti₃C₂T_x composite coatings
• Electrodeposition
• Corrosion performance
• Texture
• Hardness
• Wear behavior
• Microstructure
• Surface

Disclosure statement

No potential conflict of interest was reported by the authors.

Additional information

Funding

This study was financially supported by National Natural Science Foundation of China [grant numbers 51804138 and 51871114]; Natural Science Foundation of Jiangxi Province [grant number 20202BAB204002, 20192ACBL21013 and 20192ACB20003]; Qingjiang Young Talents Support Program of Jiangxi University of Science and Technology [grant number JXUSTQJYX2020014]; Jiangxi Students' Platform for innovation and entrepreneurship training program [grant number 202110407012 and 202010407017]; Technology Research Project of Ganzhou City [zxh].