N. B. Pugacheva

CURRENT TRENDS IN THE DEVELOPMENT OF HEAT-RESISTANT COATINGS BASED ON IRON, NICKEL AND COBALT ALUMINIDES

Long-term research results on the structural condition of heat-resistant coatings based on iron, nickel and cobalt aluminides applied to gas turbine blades by diffusion methods or spraying, as well as on their degradation and damageability under operational conditions, are presented. Peculiarities of the formation of these coatings and possible types of their defects are analyzed. Results of studying the protective properties of multilayer coatings with different chemical and phase structures are given.

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