The effect of graphene content and sliding speed on the wear mechanism of nickel-graphene nanocomposites

- Graphene reinforced nickel matrix composites were produced by pulse electroplating method at a constant current density of 5 A/dm2.
- Incorporating graphene refines the grain size and changes the microstructure of the coating.
- Incorporating graphene greatly improves the friction reduction and wear resistance of the coating.
- The nickel/graphene composite coating containing 500 mg/L graphene in the electrolyte showed the best results.