| 摘要 |
The alloy comprises by weight percent: 8-10% Chromium 0-15% Cobalt 1.5-3% Titanium+1 DIVIDED 2 Niobium 5-6.5% Aluminium 3-10.5% Tungsten 0-3.5% Molybdenum 0-3.5% Tantalum 0-0.5% Hafnium 0-1.5% Vanadium 0.015-0.05% Carbon 0-0.01% Boron 0-0.05% Zirconium Balance Nickel plus incidental impurities The invention also contemplates a heat treatment for the alloy comprising initially heating to 1300-1320 DEG C followed by maintaining at a temperature of about 870 DEG C for 16 hours, with an intermediate step at 1080-1120 DEG C for one hour if desired. |
