AIRFOIL WITH IMPROVED COATING SYSTEM AND METHODS OF FORMING THE SAME
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United States of America
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Issued Date -
Jan 23, 2020
app pub date -
Dec 14, 2018
filing date -
Dec 14, 2018
priority date (Note) -
Published
status (Latency Note)
Importance
Abstract
A coating system for a surface of a superalloy component is provided. The coating system includes a MCrAlY coating on the surface of the superalloy component, where M is Ni, Fe, Co, or a combination thereof. The MCrAlY coating generally has a higher chromium content than the superalloy component. The MCrAlY coating also includes a platinum-group metal aluminide diffusion layer. The MCrAlY coating includes Re, Ta, or a mixture thereof. Methods are also provided for forming a coating system on a surface of a superalloy component.
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International Classification(s)
- C23C:COATING METALLIC MATERIAL; COATING MATERIAL WITH M....
- C25D:PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC ....
- C22F:CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS MET....
- F01D:NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, e.g....
- B32B:LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA....
- C22C:ALLOYS
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