Corrosion Resistance and Anti-wear Properties: Ni–W–GO Nanocomposite Coating with Lamellar Structure

The effects of current density (CD) on the microstructures, corrosion and tribology behavior of Ni–W–graphene oxide (Ni–W–GO) coatings by pulse electrodeposition were studied. Ni–W–GO coating has a tendency to form lamellar structure when the CD increases, because of enhancing nucleation and inhibiting grain growth by GO sheets. Under the CD of 10 A/dm 2 , a novel lamellar Ni–W–GO coating is successfully prepared. The test results show that Ni–W–GO coating with lamellar structure has excellent corrosion resistance due to the higher corrosion potential ( E corr ) and lower corrosion CD ( i corr ), and high anti-friction property because of the self-lubricating GO sheets in coatings. Graphic Abstract