Invention Grant
US07749569B2 Methods for improving corrosion and oxidation resistance to the under platform region of a gas turbine blade
失效
用于改善对燃气轮机叶片的平台下区域的耐腐蚀性和抗氧化性的方法
- Patent Title: Methods for improving corrosion and oxidation resistance to the under platform region of a gas turbine blade
- Patent Title (中): 用于改善对燃气轮机叶片的平台下区域的耐腐蚀性和抗氧化性的方法
-
Application No.: US11964977Application Date: 2007-12-27
-
Publication No.: US07749569B2Publication Date: 2010-07-06
- Inventor: Melvin Howard Wilkins , Lawrence Bernard Kool , Warren Davis Grossklaus, Jr. , Brent Ross Tholke
- Applicant: Melvin Howard Wilkins , Lawrence Bernard Kool , Warren Davis Grossklaus, Jr. , Brent Ross Tholke
- Applicant Address: US NY Schenectady
- Assignee: General Electric Company
- Current Assignee: General Electric Company
- Current Assignee Address: US NY Schenectady
- Agency: General Electric Company
- Agent Marcella R. Louke; William Scott Andes
- Main IPC: B05D3/02
- IPC: B05D3/02
Abstract:
Formation of a silicon-modified aluminide coating on the under platform region of a superalloy gas turbine engine blade for improved corrosion and oxidation resistance. The coating is formed from a slurry composition including colloidal silica and aluminum-based powder and is substantially free of hexavalent chromium. The coating provides aluminum and silicon content in the outer 25% of a coating thickness of at least about 20% by weight aluminum and about 3% by weight silicon.
Public/Granted literature
Information query
