Two-Layer Heat-Resistant Protective Coatings for Turbine Engine Blades

One of the most important factors for increasing durability turbine engines is use blades characterized by best possible convergence thermophysical properties protective coating and base material blade. The aim research was to evaluate heat resistance prototype two-layer coatings applied blades. inner layer enables shaping outer used thermal protection blade material. plasma spraying, diffusion aluminized first type a non-contact gas method, second slurry third type, ceramics were sprayed. Turbine with subjected an engine test, after macro- microstructure tests performed. showed that MCrAlY spraying method protects against oxidation ensures its insulation.