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US 2009/0263237 A1Published application
Coated turbine component and method of coating a turbine component
AssigneeSiemens Aktiengesellschaft
InventorsPaul Box, Mick Whitehurst
Life of this patent
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Abstract
Turbine components with different types of coatings on different parts thereof are described. The coatings are chosen such that they are especially adapted to the thermal and corrosive conditions being present on the parts of the component during use. A method to coat a turbine component is also described.
Claims21
-102. (canceled)
A turbine component, comprising:
- a root;
- a neck;
- a platform;
- an airfoil;
- and
- an outer surface and an inner surface defining cooling passages therethrough, wherein at least a first coating is provided on the root.
3 more elements
A method of coating a turbine component, having a root, a neck, a platform and an airfoil with an outer and an inner surface defining cooling passages therethrough, comprising:
- applying a first coating on all outer and inner surfaces of the component;
- applying a second coating on a first portion of the coated component;
- and
- applying a third coating on a second portion of the coated component;
- wherein the first, the second and the third coating have different compositions.
2 more elements
A turbine component, comprising:
- a root;
- a neck;
- a platform;
- an airfoil;
- and
- an outer surface and an inner surface defining cooling passages therethrough, wherein the inner surface of the airfoil is provided with a first coating and the outer surface of the airfoil is provided with a second coating, the first and the second coating having different compositions, and wherein the second coating is a MCrAlY overlay coating (M representing combinations of Ni and/or Co).
3 more elements
Dependencies are inferred from the claim text.