Optimization of Process Parameters of Ni-TiN-CeO₂ Binary Nanocomposite Coatings by Ultrasound-Pulse Electrodeposition

Abstract:

Ni-TiN-CeO₂ nanocomposite coatings on 45 steel substrate were prepared by ultrasound-pulse electrodeposition. The effects of process parameters, such as CeO₂ and TiN nanoparticles addition, cathode current density, positive pulse duty cycle and ultrasonic power on the Ni-TiN-CeO₂ nanocomposite electrodeposition process were studied by orthogonal experiments. The nanoparticles contents in the coating were determined, and the surface morphology of the coating was analyzed. The results show that the optimized process parameters are: the CeO₂ particles addition of 40g/l, the TiN particles addition of 15g/l, cathode current density of 4A/dm², positive duty cycle of 20%, and the ultrasonic power of 180W. Under the optimum condition, the desirable Ni-TiN-CeO₂ nanocomposite coatings are prepared with higher particle content and better surface quality.

• Periodical: Applied Mechanics and Materials (Volumes 217-219)
• Pages: 1331-1335
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.217-219.1331
• Online since: November 2012
• Authors: Na Na Liu, Meng Hua Wu, Zhi Li
• Keywords: Nanocomposite Coating, Ni-TiN-CeO₂, Processing Optimization, Pulse Electrodeposition, Ultrasound (US)

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