METHOD OF APPLYING COATING ON ALLOYS

摘要

FIELD: mechanical engineering. SUBSTANCE: method involves sequentially applying aluminum-base coating layer and nickel-base alloy coating layer; providing thermal processing at temperature T equal to or less than 1.05 of Tq, where Tq is quenching temperature of alloys, onto which coatings are applied. For applying of nickel-base alloy coating, the following alloy is used, wt%: chromium 2-30; aluminum 2-15; tantalum 0.2-20; tungsten 0.5-10; hafnium 0.2-6; yttrium 0.001-5; silicon 0.1-5; nickel the balance up to 100%. Method is used for increasing service life of turbine blades of gas turbine engines or stationary gas turbines. EFFECT: increased strength of coatings and improved quality of parts provided with such coating. 1 ex