SUPERALLIAGE BASED ON NICKEL, MONOCRYSTALLINE AUBE AND TURBOMACHINE

摘要

The invention relates to a nickel-based superalloy comprising, in percentages by weight, 4.0 to 5.5% rhenium, 3.5 to 12.5% cobalt, 0.30 to 1.50% molybdenum, 3 5 to 5.5% chromium, 3.5 to 5.5% tungsten, 4.5 to 6.0% aluminum, 0.35 to 1.50% titanium, 8.0 to 10, 5% tantalum, 0.15 to 0.30% hafnium, 0.05 to 0.15% silicon, the remainder being nickel and unavoidable impurities. The invention also relates to a monocrystalline blade (20A, 20B) comprising such an alloy and a turbomachine (10) comprising such a blade (20A, 20B).