Mechanical, tribological performance, and high temperature oxidation behaviour of Ni- and NiCrAlY-based composite coatings with the addition of TiO2/ZnO were investigated. NiCrAlY-based composite coating presents a higher microhardness value than that of the Ni-based composite coatings. The tribological performance of composite coatings is improved by incorporating TiO2/ZnO. In particular, the NiCrAlY- based composite coatings present the lowest friction coefficient (0.24) and wear rate (7.3 x 10(-6 )mm(3) N-1 m(-1)) at 800 degrees C. The results of high-temperature oxidation experiments show that the ZnO within the coating diffuses gradually to the surface with the extension of holding time at 800 and 1000 degrees C. The diffusion behaviour at 800 degrees C can be inhibited by the substitution of the metal matrix from Ni to NiCrAlY, while it was accelerated as temperature rising up to 1000 degrees C and have no difference in Ni- and NiCrAlY-based composite coatings.