Combined coat, heat treat, quench method for gas turbine engine components

A method for imparting an aluminide coating to an alloy gas turbine engine component (32), heat treating the component (32), and quenching the component (32). The component (32) is exposed to a source of aluminum at an elevated temperature in a coating furnace to deposit an aluminum-based oxidation...

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Bibliographische Detailangaben
Hauptverfasser:	BROWN, TERRI KAY, DAS, NRIPENDRA NATH, SAYLOR, MATTHEW DAVID, PILSNER, BRIAN H, SNYDER, CARL H
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL DIFFUSION TREATMENT OF METALLIC MATERIAL INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL METALLURGY SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION
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Beschreibung
Zusammenfassung:	A method for imparting an aluminide coating to an alloy gas turbine engine component (32), heat treating the component (32), and quenching the component (32). The component (32) is exposed to a source of aluminum at an elevated temperature in a coating furnace to deposit an aluminum-based oxidation barrier on the component (32), heated in the coating furnace to a temperature of at least the solution temperature of the alloy, and quenched by flowing a chilled inert gas around the component (32) in the coating furnace to cool the component (32) from the temperature of at least the solution temperature of the alloy to a temperature at which a gamma' phase of the alloy is set in the alloy in less than about 10 minutes.