Nickel-based alloy containing tantalum

Abstract

The present invention relates to a nickel-based alloy comprising, by mass percentage: - 4.0 to 20.0% cobalt; - 14.0 to 18.5% chromium; - 1.8 to 2.6% aluminum; - 1.3 to 1.9% titanium; - 2.8 to 4.5% tantalum; - 0.01 to 0.10% carbon; - 0.003 to 0.02% boron; and - 0.01 to 0.10% zirconium; - 0 to 5% iron; and - 0 to 0.5% niobium. The present invention also relates to a method for manufacturing a part from the nickel-based alloy, the method comprising: - the production of a billet having the composition of the nickel-based alloy; - the shaping of the part; and - the heat treatment of the part. Figure to be published with the abbreviation: [Fig. 1]