Cast nickel-based superalloy including iron

摘要: A cast nickel-base superalloy that includes iron added substitutionally for nickel. The nickel base comprises, in weight percent about 1-6% iron, 7.5-19.1% cobalt, 7-22.5% chromium, 1.2-6.2% aluminum, optionally up to 5% titanium, 6.5% tantalum, 1% Nb, 2-6% W, 3% Re, 4% Mo, 0.05-0.18% C, 0.15% Hf, 0.004-0.015 B, 0.1% Zr, and the balance Ni incidental impurities. is characterized by a Υ' solvus temperature within of does not include Fe mole fraction 15% Fe.