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US 2014/0272166 A1Published application
Coating system for improved leading edge erosion protection
OwnerSungbo Shim, Raymond Sinatra +1inventors
InventorsSungbo Shim, Raymond Sinatra, Michael Cybulsky
Life of this patent
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Abstract
A gas turbine engine includes airfoils. At least a portion of the airfoils are coated with a coating that provides for erosion and corrosion protection for the portion of the airfoils.
Claims13
A method for coating a portion of a gas turbine engine blade, the method comprising the steps of
- providing a gas turbine blade, the blade further comprising an airfoil section having an exterior surface and
- applying a coating layer to a preselected exterior surface selected from the group consisting of the leading edge surface, the concave side surface, the convex side, and combinations thereof, the coating layer selected from the group consisting of tungsten-tungsten carbide, tungsten carbide cobalt, cobalt-chrome-tungsten carbide, chrome carbide-nickel, chrome carbide-nickel-chrome, and diamond like carbon,
- wherein the coating layer at the leading edge surface has a thickness from about 10 μm to about 100 μm.
Dependencies are inferred from the claim text.