Surface alloy re-melting to increase resistance to oxidation
AssigneePratt & Whitney Canada Corp. (P&Wc)
InventorsJoel LAROSE, Alain BOUTHILLIER, Ata SAEED, Assaf FARAH
Life of this patent
Estimating the term…
Abstract
A method for increasing oxidation resistance of an alloy surface comprises scanning a high energy source onto the alloy surface; re-melting at least a partial area of the alloy surface using the high energy source; and forming a re-melt layer having a controlled depth; wherein the alloy surface comprises a first oxidation resistance, the re-melt layer comprises a second oxidation resistance, and the second oxidation resistance is greater than the first oxidation resistance.
Claims20
A method for increasing oxidation resistance of an alloy surface, comprising:
- scanning a high energy source onto the alloy surface to melt the alloy surface;
- after the melted alloy surface solidifies, re-melting at least a partial area of the alloy surface using the high energy source to thereby form a re-melt layer such that:
- the alloy surface comprises a first oxidation resistance,
- the re-melt layer comprises a second oxidation resistance, and
- the second oxidation resistance is greater than the first oxidation resistance.
A gas turbine engine component having increased oxidation resistance, comprising:
- an alloy having a surface including at least a partial area comprising a re-melt layer having a controlled depth;
- wherein the surface of the alloy comprises a first oxidation resistance, the re-melt layer comprises a second oxidation resistance, and the second oxidation resistance is greater than the first oxidation resistance.
A gas turbine engine having increased oxidation resistance, comprising:
- one or more gas turbine engine components comprising an alloy having a surface including at least a partial area comprising a re-melt layer;
- wherein the surface of the alloy comprises a first oxidation resistance, the re-melt layer comprises a second oxidation resistance, and the second oxidation resistance is greater than the first oxidation resistance.
Dependencies are inferred from the claim text.