Highly corrosion and wear-resistant NiW–SiC–CeO 2 composite coating

Crack-free and uniform NiW composite coatings filled with ceramic particles such as SiC and CeO2 were deposited on brass substrates by applying direct current (DC) and a well-designed pulse reverse current waveforms (PRC). PRC coatings displayed the noblest corrosion potential and lowest current density compared to DC electrodeposited coatings. Among all PRC coatings, PRC–NiW–SiC–CeO2 demonstrated the highest corrosion resistance and the lowest current density. It also seems that the addition of ceramic particles to the NiW matrix enhanced the wear resistance of the coatings and the lowest wear volume of about (14.119 × 103 µm3) and the friction coefficient of 0.25 was obtained due to the formation of the uniform, void-free and packed structures with high content of SiC and CeO2 particles in the deposit.