Method of coating gas turbine components

A method of forming a metal coating on surfaces of internal passages of a turbine part includes applying a nickel aluminum bond coating to an external surface of the turbine part, positioning the turbine part in a VPA chamber, coupling a gas manifold to at least one internal passage inlet, and coati...

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Bibliographische Detailangaben
Hauptverfasser:	GUPTA BHUPENDRA K, ZIMMERMAN ROBERT G.JR, DAS NRIPENDRA N, SAYLOR MATHEW D
Format:	Patent
Sprache:	eng
Schlagworte:	APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL PERFORMING OPERATIONS PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL SPRAYING OR ATOMISING IN GENERAL TRANSPORTING
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Beschreibung
Zusammenfassung:	A method of forming a metal coating on surfaces of internal passages of a turbine part includes applying a nickel aluminum bond coating to an external surface of the turbine part, positioning the turbine part in a VPA chamber, coupling a gas manifold to at least one internal passage inlet, and coating at least a portion of the internal surface and the external of the turbine part by a vapor phase aluminiding (VPA) process using metal coating gases to form a coating on the internal surfaces of the turbine part.