FIELD: technological processes.
SUBSTANCE: invention relates to application of double-layer coating and can be used at improvement of operational properties of parts, for example, in aircraft engine building. Method of application of double-layer coating on part of gas-turbine engine includes sputtering of sublayer from nickel-aluminum alloy and application of external porous layer by gas-thermal sputtering. On said sputtered sublayer is exposed to laser radiation formed by means of optical system, containing at least one radiation focuser for converting a laser beam into a light spot in form of a band with increase in radiation power density from its center to edges. Said external porous layer is applied from aluminum-nitride of boron.
EFFECT: providing a coating with high adhesion, which leads to improved operational properties of parts.
1 cl, 1 dwg
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