Rotor blade, method for manufacturing a rotor blade and a gas turbine engine
AssigneeOerlikon Surface Solutions AG, PfäFfikon
InventorsLin Shang, Sebastien Guimond, Volker Derflinger, Toby Charles Middlemiss, Thomas Wunderlich, Dan Roth-Fagaraseanu, Susanne Schrüfer
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Abstract
A rotor blade in a gas turbine engine having a coating on a blade tip of the rotor blade. The coating includes an oxidation resistant abrasive layer and the rotor blade tip having at least partially an oriented surface with a normal vector with a component in the rotational direction of the rotor blade. A method of manufacturing the rotor blade and a gas turbine engine with the rotor blade.
Claims11
A rotor blade in a gas turbine engine,
- the rotor blade comprising a coating on a blade tip of the rotor blade, the rotor blade tip having at least partially an oriented surface with a normal vector with a component in the rotational direction of the rotor blade,
- wherein the rotor blade tip comprises a multilayer coating this further comprising an oxidation resistant abrasive layer on top of a layer of MCrAlX, where M comprises one or more of Ni and Co and X comprises one or more of Y and Hf.
A method of manufacturing a rotor blade in which a coating on a blade tip of the rotor blade is deposited with plasma vapor deposition and/or chemical vapor deposition, wherein the coating is a multilayer coating comprising an oxidation resistant abrasive layer on top of a layer of MCrAlX, where M comprises one or more of Ni and Co and X comprises one or more of Y and Hf, the rotor blade tip having at least partially an oriented surface with a normal vector with a component in the rotational direction of the rotor blade.
Dependencies are inferred from the claim text.