Title: GH3922 superalloy: the perfect combination of unique heat treatment process and excellent performance.
Article: Among many superalloys, GH3922 alloy plays an important role in aviation, aerospace, energy and other fields with its excellent mechanical and physical properties. This article will introduce in detail the production process, chemical composition, application fields and material advantages of GH3922 superalloy wire, forgings, plates, round bars and other products.
1. Heat treatment process.
The heat treatment process of GH3922 superalloy is its unique feature. The heat treatment process includes solution treatment, aging treatment and tempering treatment. The purpose of these processes is to adjust the microstructure of the alloy to obtain excellent properties and physical properties.
1.Solution treatment: GH3922 alloy is heated to high temperature to fully dissolve nickel, chromium, copper and other elements in the alloy, thereby improving the plasticity and toughness of the alloy.
2.Aging treatment: After solution treatment, the alloy is cooled to the chamber, and then heated to a certain temperature for a period of time to precipitate the carbides and nitrides in the alloy, thereby improving the strength and hardness of the alloy.
3.Tempering treatment: In order to eliminate the internal stress caused by aging treatment, the hardness of the alloy, improve the plasticity and toughness, the alloy is heated to a lower temperature, held for a period of time, and then cooled slowly.
2. Chemical composition analysis.
The chemical composition of GH3922 superalloy is as follows.
1.Nickel: about 300%
2.Chromium: Approx. 220%
3.Iron: about 180%
4.Molybdenum: about 90%
5.Cobalt: about 40%
6.Aluminum: about 20%
7.Titanium: About 15%
8.Manganese: about 10%
9.Silicon: about 05%
10.Phosphorus: about 002%
11.Sulfur: about 001%
Third, the field of application.
GH3922 superalloy is widely used in the following fields due to its excellent properties:
1.The high-temperature strength and corrosion resistance of GH3922 alloy for aero engines make it an ideal material for key components of aero engines.
2.Gas turbine: GH3922 alloy has good thermal stability and can work for a long time in high temperature and high pressure environment.
3.Energy equipment: GH3922 alloy is used in key components of energy equipment such as nuclear reactors and heat exchangers.
4.Chemical equipment: GH3922 alloy is widely used in chemical equipment in high-temperature, high-pressure and corrosive environments.
Fourth, mechanical properties.
GH3922 superalloy has the following excellent mechanical properties:
1.Tensile strength: 720MPa
2.Yield strength: 440MPa
3.Modulus of elasticity: 210gpa
4.Hardness: 300HB
5. Physical properties.
1.Melting Point: about 130
2.The thermal conductivity is about 14W (m·k).
3.Resistivity: about 0022μω·m
Sixth, material advantages.
1.Excellent high-temperature performance: GH3922 alloy is in. Good corrosion resistance GH3922 alloy corrosion resistance can be used in a variety of ways.