GH4090 is a nickel-chromium-cobalt precipitation hardening deformed superalloy with a service temperature of up to 920. The alloy contains a high content of cobalt and a variety of strengthening elements, and has high tensile strength, creep resistance, oxidation resistance and corrosion resistance in 815 870, and high fatigue strength and good processing and welding performance under the repeated alternation of cold and heat. Suitable for the manufacture of turbine discs, blades, high-temperature fasteners, clamps, seals and elastomeric components for aerospace turbine engines.
The chemical composition of GH4090 alloy and its weight percentage are as follows:
c (carbon): 008%
CR (Chromium): 1800～21.00%
Ni (Nickel): 5000～55.00%
CO (Cobalt): 100%
MO (molybdenum): 500～7.00%
Al (aluminum): 350～4.50%
Ti (Titanium): 150%
Fe (iron): 200%
b(boron): 0005%
zr (zirconium): 020%
SI (Silicon): 040%
mn (manganese): 050%
p(phosphorus): 0015%
s(sulphur): 0007%
CU (copper): 050%
pb (lead): 0001%
bi (bismuth): 00001%
The performance data of GH4090 alloy are as follows:
Density: 818 grams cubic centimeters.
Magnetic: Non-magnetic.
Thermal conductivity (100-900): 1147-25.83 W. M. Kelvin.
Resistivity (20): 134 mm meters.
Specific heat capacity: good specific heat capacity performance in the range of 25-900.
Linear expansion coefficient (25 800): 1636 10 Kelvin.
GH4090 nickel-based alloy has the following main properties and functions:
1.High temperature stability: GH4090 has excellent stability in high temperature environment, and can still maintain good mechanical properties at high temperatures up to 750 °C.
2.Corrosion resistance: The material has excellent corrosion resistance, especially in oxidizing and reducing environments. This makes it have broad application prospects in the fields of chemical industry, energy, aerospace, and automotive.
3.High strength: GH4090 has high strength, suitable for manufacturing structural parts and high-temperature corrosion-resistant parts at high temperatures.
4.Good machinability: GH4090 alloy is easy to be machined, which is convenient for manufacturing various complex parts.
GH4090 nickel-based alloy is widely used in the following fields:
1.Chemical industry: used to manufacture reactors, heat exchangers, pipelines and other equipment to cope with corrosive environments.
2.Energy: Used in combustion furnaces, nuclear reactors, heat treatment equipment, and power turbines.
3.Aerospace: Used in the manufacture of parts in high-temperature environments and structural parts in high-temperature corrosive environments.
4.Automotive: Used in the manufacture of exhaust systems, exhaust mufflers and other components to cope with high temperatures and corrosive environments.
In short, with the development of science and technology and industrial progress, superalloys are also constantly developing and upgrading, at present, researchers are developing a series of new superalloys to improve their mechanical properties and processing properties, and explore their applications in a wider range of fields, in the future, superalloys will continue to play their unique advantages, become one of the important representatives in the field of high-performance materials.