Nickel-based superalloy, single-crystal blade and turbomachine
US11396685B2 · kind B2 · utility
1Cited by
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12Claims
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Key dates
| Filing date | Nov 14, 2018 |
| Grant date | Jul 26, 2022 |
| Priority date | — |
| Expiry date | Nov 14, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2300/607
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A nickel-based superalloy comprises, in percentages by mass, 4.0 to 5.5% rhenium, 1.0 to 3.0 ruthenium, 2.0 to 14.0% cobalt, 0.3 to 1.0% molybdenum, 3.0 to 5.0% chromium, 2.5 to 4.0% tungsten, 4.5 to 6.5% aluminum, 0.50 to 1.50% titanium, 8.0 to 9.0% tantalum, 0.15 to 0.30% hafnium, 0.05 to 0.15% silicon, the balance being nickel and unavoidable impurities. A single-crystal blade comprises such an alloy and a turbomachine comprising such a blade.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.