Abstract: The invention relates to metallurgy and mechanical engineering, in particular to the development of methods for providing metallic pieces with protective coatings with a view to improving the performance characteristics thereof. In accordance with the inventive method, a multilayer coating is formed by combining and simultaneously or consecutively using of various technologies including ion-plasma evaporation diffusive metallization and controlled atmosphere thermal treatment. The obtained coatings possess superior characteristics with respect to overall properties and are used for gas turbine construction, in particular, for manufacturing gas turbine vanes of aircraft engines.