Ni-based alloy, and gas turbine rotor blade and stator blade each using same
US9353427B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 16, 2011 |
| Grant date | May 31, 2016 |
| Priority date | — |
| Expiry date | May 10, 2032 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22F1/10
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
This invention provides an Ni-based alloy, which is particularly used for standard casting and is provided with properties such as strength at high temperatures, corrosion resistivity, and oxidation resistivity in a more balanced manner, compared with existing materials. The Ni-based alloy comprises Cr, Co, Al, Ti, Ta, W, Mo, Nb, C, B, and unavoidable impurities, with the balance consisting of Ni. Composition of the alloy is represented by mass: 13.1% to 15.0% Cr, 1.0% to 15.0% Co, 2.3% to 3.3% Al, 4.55% to 6.0% Ti, 3.05% to 4.0% Ta, 4.35% to 4.9% W, 0.1% to 2.0% Mo, 0.05% to 0.5% Nb, less than 0.05% Zr, 0.05% to 0.2% C, and 0.01% to 0.03% B.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.