Patent ID: 8524149

Claim:
A nickel base alloy comprising, by mass 0.001 to 0.1% of carbon 12 to 23% of chromium 18.5 to 25% of cobalt 3.5 to 5.0% of aluminum 4 to 10% of molybdenum 0.1 to 7.0% of tungsten and not more than 0.5% in a total amount of titanium, tantalum and niobium; wherein a total amount of molybdenum and tungsten is 4.1 to 12% by mass; and wherein a parameter Ps represented by a formula (I) shown below is 0.6 to 1.6, Ps=− 7×[C]−0.1×[Mo]+0.5×[Al] (1) where [C] indicates an amount of carbon; [Mo] indicates an amount of molybdenum; and [Al] indicates an amount of aluminum, by mass percent.