Back to results
US 12,359,573 B2Granted
Blade for a turbomachine including blade tip armor and an erosion protection layer, and method for manufacturing same
AssigneeMTU Aero Engines AG
InventorsThomas Uihlein, Ralf Stolle
Life of this patent
Estimating the term…
Abstract
A blade for a turbomachine is provided. The blade at its blade tip (4) includes blade tip armor (5), and an erosion protection layer (11) above the blade tip armor. For the blade, the erosion protection layer in the area of the blade tip has a layer thickness in the range of 5 μm to 100 μm, in particular 10 μm to 50 μm.
Claims13
A blade for a turbomachine, the blade comprising:
- a blade tip including blade tip armor,
- wherein the blade tip armor includes a nickel layer with embedded hard material particles or an MCrAlY layer with embedded hard material particles, where M of the MCrAlY layer is a metal;
- the embedded hard material particles protruding from a surface of the nickel or MCrAlY layer;
- an erosion protection layer on the surface of the blade tip and having a layer thickness in the range of 10 μm to 50 μm so that a portion of the hard material particles protrudes beyond the erosion protection layer;
- wherein the erosion protection layer includes at least one metal layer and a ceramic layer;
- and
- wherein the erosion protection layer includes multiple repeated, layer sequences of the metal layer and the ceramic layer.
4 more elements
Dependencies are inferred from the claim text.