Nickel-based alloys
AssigneeQuesTek Innovations LLC
InventorsJames A. Wright, Weiming Huang, Abhijeet Misra, Jeremy Hoishun Li, Jiadong Gong, Dana J. Frankel
Life of this patent
Estimating the term…
Abstract
An alloy includes, in weight percentage, about 20.0% to about 25.0% chromium, 0% to about 5.0% molybdenum, about 3.0% to about 15.0% cobalt, about 1.5% to about 6.0% niobium, about 1.0% to about 3.0% tantalum, about 1.0% to about 5.0% tungsten, 0% to about 1.0% aluminum, 0% to about 0.05% carbon, 0% to about 0.01% titanium, and the balance nickel and incidental elements and impurities, wherein the alloy includes L12 and D022 precipitates in a compact morphology.
Claims18
An alloy comprising, in weight percentage,
- about 20.0% to about 25.0% chromium,
- 0% to 4% molybdenum,
- about 3.0% to about 15.0% cobalt,
- about 1.5% to about 6.0% niobium,
- about 1.0% to about 3.0% tantalum,
- about 1.0% to about 5.0% tungsten,
- 0% to about 1.0% aluminum,
- 0% to about 0.05% carbon,
- 0% to about 0.01% titanium,
- and the balance nickel and incidental elements and impurities,
- wherein the alloy includes L12 and D022 precipitates in a compact morphology;
- wherein the ratio of the D022 phase fraction to the L12 phase fraction is about 3:1 to about 5:1, at about 760° C.;
- and
- wherein the alloy has a Vickers Hardness Number of at least 360.
An alloy comprising, in weight percentage,
- about 20.0% to about 25.0% chromium,
- 0% to about 5.0% molybdenum,
- about 3.0% to about 15.0% cobalt,
- about 1.5% to about 6.0% niobium,
- about 1.0% to about 3.0% tantalum,
- about 1.0% to about 5.0% tungsten,
- 0% to about 1.0% aluminum,
- 0% to about 0.05% carbon,
- 0% to about 0.01% titanium,
- and the balance nickel and incidental elements and impurities,
- wherein the alloy includes L12 and D022 precipitates in a compact morphology;
- wherein the sum of the L12 phase fraction and the D022 phase fraction is about 0.1 to about 0.14;
- and
- wherein the ratio of the D022 phase fraction to the L12 phase fraction is about 3:1 to about 5:1, at about 760° C.
Dependencies are inferred from the claim text.