High gamma prime nickel based superalloy, its use, and method of manufacturing of turbine engine components
The specification relates to a high gamma prim nickel based superalloy, its use and a method of manufacturing of turbine engine components by welding, 3D additive manufacturing, casting and hot forming, and the superalloy comprises by wt %: from 9.0 to 10.5% Cr, from 16 to 22% Co, from 1.0 to 1.4% Mo, from 5.0 to 5.8% W, from 2.0 to 6.0% Ta, from 1.0 to 4.0% Nb provided that total content of Ta and Nb remains with a range from 3.0 to 7.0%, from 3.0 to 6.5% Al, from 0.2 to 1.5% Hf, from 0.01 to 0.2% C, from 0 to 1.0% Ge, from 0 to 1.0 wt. % Si, from 0 to 0.2 wt. % Y, from 0 to 0.015 wt. % B, from 1.5 to 3.5 wt. % Re, and nickel with impurities to balance.
1. A gamma prime nickel-based superalloy, comprising by wt. %:
Chromium from 9.0 to 10.5%,
Cobalt from about 16 to 22%,
Molybdenum from 1.0 to 1.4%,
Tungsten from 5.0 to 5.8%,
Tantalum from 2.0 to 6.0%,
Niobium from 2.2 to 4.0%,
Tantalum plus Niobium from 4.2 to 7.0%,
Aluminum from 3.0 to 6.5%,
Hafnium from 0.2 to 1.5%,
Germanium from 0 to 1.0%,
Yttrium from 0 to 0.2%,
Silicon from 0.2 to 1.0%,
Boron from 0 to 0.015%,
Carbon from 0.01 to 0.2%,
Rhenium from 1.5 to 3.5%, and
Nickel with impurities to balance.
2. The gamma prime nickel-based superalloy according to claim 1 wherein the total content of germanium and silicon is within 0.9-1.1 wt. %.
3. A use of the gamma prime nickel-based superalloy according to claim 1 as the material for a welding wire, welding powder, or turbine engine components.
4. A gamma prime nickel-based superalloy as per claim 1 , comprising by wt. %:
Chromium from 9.5 to 10.5%,
Cobalt from about 17 to 19%,
Molybdenum from 1.1 to 1.3%,
Tungsten from 5.0 to 5.8%,
Tantalum from 1.5 to 2.5%,
Niobium from 2.5 to 4.0%,
Tantalum plus Niobium from 5.0 to 6.0%,
Aluminum from 6.0 to 6.5%,
Hafnium from 0.3 to 0.5%,
Silicon from 0.4 to 0.8%,
Boron from 0.01 to 0.015%,
Carbon from 0.01 to 0.12%,
Rhenium from 2.0 to 2.5%, and
Nickel with impurities to balance.