A diffusion barrier based on a NiW electrolytic coating has been developed to limit
interdiffusion between a Ni-base superalloy (MCNG) and a β-NiAl bondcoating. Isothermal
oxidation tests of 50h at 1100°C confirmed that W-rich layer formed with NiW coating modifies the
oxidation behaviour of the bondcoat and limits interdiffusion. The diffusion barrier reduced
β-NiAl γ’-Ni3Al transformation in the bondcoating and prevented SRZ formation.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.