FIELD: machine building.
SUBSTANCE: proposed method comprises ion-plasma preparation and ion-implanting vane surface treatment, and vacuum-plasma application of heat-resisting ceramic layer based on ZrO2 stabilised by Y2O3. Ion-implanting treatment of vane surface is performed by ions of one or several elements selected from Nb, Pt, YB, Y, La, Hf, Cr, Si. Note here that following material for producing outer heat-resisting layer is used with composition that follows in wt %: Si - 4.0-12.0, Y - 1.0-2.0, Al making the rest. Note here that application of outer heat-resisting layer is alternated with periodic implantation by ions of one or several elements Nb, Pt, Yb, Y, La, Hf, Cr, Si to make said outer heat-resisting layer made up of micro layers separated be implanted micro- or nano-layers. Transition layer application material represents the alloy of composition including Cr - 18 wt % to 34 wt %; Al - 3 wt % to 16 wt %; Y - 0,.% to 0.7 wt %; Ni making the set, or the following composition: Cr - 18 wt % to 34 wt %; Al - 3 wt % to 16 wt %; Y 0.2 wt % to 0.7 wt %; Co - 16 wt % to 30 wt %; Ni making the rest.
EFFECT: higher heat resistance, longer life and higher cyclic strength.
20 cl, 3 tbl
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HEAT RESISTANT COATING AND PROCEDURE FOR ITS FABRICATION | 2009 |
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RU2426819C1 |
PROCEDURE FOR FORMING HEAT SHIELDING COATING ON TURBINE BLADE OF HEAT RESISTANT NICKEL ALOYS | 2009 |
|
RU2426817C2 |
FORMATION METHOD OF THERMAL PROTECTIVE COATING ON PARTS OF GAS TURBINES FROM NICKEL AND COBALT ALLOYS | 2011 |
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RU2479666C1 |
METHOD OF APPLYING HEAT COATING OF NICKEL OR COBALT ALLOY ON GAS TURBINE PARTS | 2011 |
|
RU2496911C2 |
Authors
Dates
2012-01-27—Published
2009-04-28—Filed