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US 2015/0010428 A1Published application
Alloy
AssigneeROLLS-ROYCE plc
InventorsMark Christopher HARDY, David DYE, Huiyu YAN, Matthias KNOP, Howard James STONE
Life of this patent
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Abstract
A cobalt-nickel alloy composition comprising by weight: about 29 to 37 percent cobalt; about 29 to 37 percent nickel; about 10 to 16 percent chromium; about 4 to 6 percent aluminium; at least one of Nb, Ti and Ta; at least one of W, Ta and Nb; the cobalt and nickel being present in a ratio between about 0.9 and 1.1.
Claims20
A cobalt-nickel alloy composition comprising by weight (wt):
- 29.2 to 37 percent Co;
- 29.2 to 37 percent Ni;
- 10 to 16 percent Cr;
- 4 to 6 percent Al;
- at least one of W, Nb, Ti and Ta;
- the Co and Ni being present in a ratio between about 0.9 and 1.1.
3 more elements
A cobalt-nickel alloy composition comprising by weight (wt):
- 29.2 to 37 percent Co;
- 29.2 to 37 percent Ni;
- 10 to 16 percent Cr;
- 4 to 6 percent Al;
- 5 to 10 percent W;
- 1 to 5 percent Mo;
- 2.9 to 4 percent Ta;
- 0.02 to 0.04 percent C;
- 0.015 to 0.035 percent B;
- 0.04 to 0.07 percent Zr.
7 more elements
Dependencies are inferred from the claim text.