| 主权项 |
1. A niobium bearing superalloy including about of 2.2 to 4 wt. % aluminum, about 0.01 to 0.05 wt. % boron, about 0.02 to 0.06 wt. % carbon, about 6 to 15 wt. % chromium, about 0 to 20 wt. % cobalt, about 0 to 0.5 wt. % hafnium, about 1 to 3 wt. % molybdenum, about 7.2 to 16 wt. % niobium, about 0 to 0.6 wt. % silicon, about 1 to 5 wt. % tantalum, about 0 to 1.5 wt. % titanium, about 1 to 3 wt. % tungsten, about 0.04 to 0.1 wt. % zirconium and the balance nickel and incidental impurities. |
