FIELD: technological processes.
SUBSTANCE: invention relates to a method of applying heat-resistant coating and can be used to increase reliability and durability of a wide range of parts of machines and tools. Vacuum-arc discharge is deposited from plasma from two alternatively used single-component cathodes Mo and Y on substrate from aviation structural alloys. Gradient structure of the heat-resistant coating is formed on the surface with smooth transition from pure metals to molybdates and yttrium oxide. Composition of gas working medium is smoothly changed from pure argon to oxygen.
EFFECT: technical result is improved resistance of parts to gas corrosion and possibility of achieving high adhesion strength due to gradient coating with a wide range of deposited materials, at which substrate from aircraft structural alloys will not be destructed at high operating temperatures (up to 1500 °C).
1 cl, 2 dwg, 1 ex
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