FIELD: thermochemical treatment. SUBSTANCE: method of application of combined heat-resistant coating to turbine blades includes vacuum chromoaluminizing in powder mixture, thermovacuum treatment and plasma spraying in vacuum on blade edges of layer containing aluminum, and subsequent annealing for final formation of coating having structure of beta-phase on inlet edge with concentration of aluminum of 22.5-24.0% with transition into β+γ′ phase on the other parts of blades with aluminum concentration of 16-18%. EFFECT: higher durability and reliability of components of gas-turbine engines operating under conditions of varying thermomechanical loads and high-temperature oxidation. 5 dwg, 1 ex
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