| Abstract: | Cr-O-N films with different chemical composition were deposited using arc ion plating (AIP) between NiCrAlY coatings and the DSM11 substrate as diffusion barriers. The influences of the barriers and the roughness of the substrate on the adhesion of DSM11/Cr-O-N/NiCrAlY were investigated. In general, we observed that the NiCrAlY coating without diffusion barrier has the best adhesion. After including the Cr-O-N films, the adhesion decreased with the increasing oxygen flow rate and the adhesion of the wet blasting substrate is higher than the polishing substrate. |
