Method for repairing titanium alloy components

a technology of titanium alloy and components, applied in the direction of engine components, machines/engines, mechanical equipment, etc., can solve the problems of significant operating expense and time out of service, stress loading of lpc/hpc components, and deformation of lpc/hpc components over tim
US20060045785A1Inactive Publication Date: 2006-03-02HONEYWELL INT INC
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Patent Information

Authority / Receiving Office
US · United States
Current Assignee / Owner
HONEYWELL INT INC
Publication Date
2006-03-02
Estimated Expiration
Not applicable · inactive patent

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Abstract

A method for repairing a titanium alloy surface of a turbine component includes the step of cold gas-dynamic spraying a powder material comprising at least one titanium alloy directly on the titanium alloy surface. The method may further include the steps of hot isostatic pressing the cold gas-dynamic sprayed turbine component, and performing a separate heat treating step after the hot isostatic pressing. Thus, the cold gas-dynamic spray process and post-spray processing can be employed to effectively repair degraded areas on compressor turbine components.
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Description

TECHNICAL FIELD

[0001] The present invention relates to repair and overhaul of turbine engine components. More particularly, the present invention relates to methods for repairing turbine engine components made from titanium alloys. BACKGROUND

[0002] Turbine engines are used as the primary power source for many types of aircrafts. The engines are also auxiliary power sources that drive air compressors, hydraulic pumps, and industrial gas turbine (IGT) power generation. Further, the power from turbine engines is used for stationary power supplies such as backup electrical generators for hospitals and the like.

[0003] Most turbine engines generally follow the same basic power generation procedure. Compressed air generated by axial and / or radial compressors is mixed with fuel and burned, and the expanding hot combustion gases are directed against stationary turbine vanes in the engine. The vanes turn the high velocity gas flow partially sideways to impinge on the turbine blades mounted...

Claims

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