Invention Grant
- Patent Title: Erosion and corrosion resistant coatings for exhaust gas recirculation based gas turbines
- Patent Title (中): 基于排气再循环的燃气轮机的侵蚀和耐腐蚀涂层
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Application No.: US13528149Application Date: 2012-06-20
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Publication No.: US09365932B2Publication Date: 2016-06-14
- Inventor: Krishnamurthy Anand , Yuk-Chiu Lau , Paul Mathew , Surinder Singh Pabla , Guruprasad Sundararajan , Mohandas Nayak
- Applicant: Krishnamurthy Anand , Yuk-Chiu Lau , Paul Mathew , Surinder Singh Pabla , Guruprasad Sundararajan , Mohandas Nayak
- Applicant Address: US NY Schenectady
- Assignee: General Electric Company
- Current Assignee: General Electric Company
- Current Assignee Address: US NY Schenectady
- Agency: McNees Wallace & Nurick, LLC
- Main IPC: C23C30/00
- IPC: C23C30/00 ; F01D5/28

Abstract:
A compressor blade for use in a compressor section of a gas turbine engine, comprising: a martensitic stainless steel compressor blade and an abrasive coating having an anodic component. The compressor blade has a blade portion, a dovetail portion and a platform portion intermediate the blade portion and the dovetail portion, the blade portion terminating in a tip opposite the dovetail portion. A cobalt-based coating overlies at least the blade portion of the compressor blade. The cobalt-based coating comprises a cobalt based material that includes precipitates of tungsten carbide that provide erosion resistance and particles of a sacrificial metal-based material distributed through the cobalt-based coating that provide galvanic corrosion resistance to the system.
Public/Granted literature
- US20130340403A1 EROSION AND CORROSION RESISTANT COATINGS FOR EXHAUST GAS RECIRCULATION BASED GAS TURBINES Public/Granted day:2013-12-26
Information query
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