COMBINATION COATING APPLYING METHOD Russian patent published in 2005 - IPC

Abstract RU 2244041 C1

FIELD: metallurgy, namely chemical and heat treatment of refractory alloys, possibly used for applying protective coatings onto blades of gas-turbine engines.

SUBSTANCE: method comprises steps of applying onto inner and outer surfaces of parts diffusion aluminide coating in circulating gaseous medium; applying coating in low-active system at relation of reaction surfaces F_н/F_o = 0.3 - 0.7, where F_н - total surface of parts to be coated; F_o - total surface of saturating mixture; then applying onto outer surfaces of parts cladding coating, namely MeCrAlY, where Me - Ni, Co, NiCo by ion-plasma process or electron beam evaporation in vacuum.

EFFECT: improved fire and corrosion resistance of coating, increased resource of blades of gas-turbine engine.

1 cl, 1 ex, 1 tbl

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RU 2 244 041 C1

Authors

Kuznetsov V.P.

Lesnikov V.P.

Mubojadzhjan S.A.

Sidorenko V.I.

Tsypkov S.V.

Dates

2005-01-10—Published

2003-04-29—Filed