Patent ID: 9518311
Filing Date: 2016-12-13
CPC Classification: C22C,C30B

Claim Text:
1. A nickel-base superalloy for single crystal casting, comprising: 5.60% to 5.80% by weight of aluminum; 9.4% to 9.8% by weight of cobalt; 3.2% to 3.9% by weight of chromium; 7.8% to 8.5% by weight of tantalum; 5.3% to 5.7% by weight of tungsten; 0.50% to 0.70% by weight of molybdenum; 4.3% to 4.9% by weight of rhenium; 0.75% to 0.90% by weight of titanium; 0.08% to 0.15% by weight of hafnium; a maximum of 5 ppm nitrogen by weight, less than 1.1% by weight of elements other than aluminum, cobalt, chromium, tantalum, tungsten, molybdenum, rhenium, titanium and nickel; and the balance nickel, wherein the casting exhibits a time to 2.0% creep under a stress of 248 MPa (36.0 ksi) and at a temperature of 982° C. (1800° F.) of about 320 hours or greater.