Protection of Ferritic Steels by Nano-Structured Coatings: Supercritical Steam Turbines Applications

In many applications at high temperature, micro-structured coatings have been applied in order to protect structural materials against a wide range of different environments: oxidation, metal dusting, sulphidation, molten salts, steam, etc... The resistance achieved by the use of different kind of coatings have been optimum, and with late design such as TBC s and FGM s coatings. Although, the lifetime of them are related with inter-diffusion, and different CET as main degradation mechanisms.