Microstructure, friction and corrosion resistance properties of a Ni-Co-AlO composite coating.

Ni-Co-AlO composite coatings were prepared by pulsed electrodeposition and electrophoresis-electrodeposition on aluminum alloy. The content of AlO particles of the Ni-Co-AlO composite coating prepared by electrophoresis-electrodeposition was significantly higher than the composite coating prepared by pulsed electrodeposition. The composite coating prepared by electrophoresis-electrodeposition exhibited a better anti-wear performance than that prepared by pulsed electrodeposition.