Nickel-based superalloy, single-crystal blade and turbomachine
AssigneesSafran, Safran Aircraft Engines, Centre National De La Recherche Scientifique, Universite De Poitiers, Ecole Nationale Superieure D'Arts Et Metiers
InventorsJérémy Rame, Jonathan Cormier, Lorena Mataveli Suave, Edern Menou
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Abstract
The invention relates to a nickel-based superalloy comprising in weight percentages: 5.0 to 6.0% of aluminium, 6.0 to 9.0% of tantalum, 1.0 to 5.0% of cobalt, 5.0 to 7.5% of chromium, 0 to 1.0% of molybdenum, 4.0 to 6.0% of tungsten, 0.50 to 3.5% of rhenium, 1.0 to 4.0% of platinum, 0.05 to 0.25% of hafnium, 0 to 0.15% of silicon, the remainder consisting of nickel and unavoidable impurities. The invention also relates to a single-crystal blade comprising such an alloy and to a turbomachine comprising such a blade.
Claims8
A nickel-based superalloy comprising in weight percentages:
- 5.4 to 6.0% aluminium, 7.5 to 8.5% tantalum, 2.0 to 4.0% cobalt, 5.0 to 7.5% chromium, 0 to 0.20% molybdenum, 4.5 to 6.0% tungsten, 1.50 to 3.5% rhenium, 1.0 to 4.0% platinum, 0.05 to 0.25% hafnium, 0 to 0.15% of silicon, the remainder consisting of nickel and unavoidable impurities.
Dependencies are inferred from the claim text.