Title: NS112 base alloy: comprehensive analysis of its characteristics and application fields.
1. Introduction to nickel-based alloys.
Nickel-based alloy is a class of alloy with nickel as the main element, which has been widely used in aviation, aerospace, energy, chemical and other industries due to its excellent high-temperature strength, corrosion resistance, oxidation resistance welding performance and good mechanical properties. Among them, NS112 nickel-based alloy is an alloy with high temperature strength and good corrosion resistance, which is a new type of superalloy material independently developed by China.
2. Chemical composition and heat treatment process of NS112 nickel-based alloy.
1.Chemical composition.
The chemical composition of NS112 nickel-based alloy mainly includes nickel, chromium, cobalt, titanium, manganese and other elements. Its specific chemical composition is as follows:
Nickel (Ni): 550%
Chromium (CR): 1800 - 21.00%
Cobalt (Co): 100%
Aluminium (Al): 10%
Titanium(Ti): 05%
Manganese (mn): 15%
Copper (cu): 10%
Carbon(c): 015%
Sulfur (s): 0015%
Phosphorus (p): 0015%
Silicon (Si): 05%
2.Heat treatment process.
The heat treatment process of NS112 nickel-based mainly includes solution treatment and aging treatment. Solution treatment is to heat the alloy to about 1100 and hold it for a certain time to fully dissolve the elements in the alloy. Aging treatment is to keep the solution alloy at room temperature or slightly higher for a certain period of time to stabilize the structure and properties of the alloy.
3. Mechanical and physical properties of NS112 nickel-based alloy.
1.Mechanical properties.
NS112 nickel-based alloy has high strength and toughness, with a tensile strength of up to 690MPa and a yield strength of up to 340MPa at room temperature. In addition, the alloy has good fatigue strength and fracture toughness, and can maintain stable performance in harsh environments such as high temperature, high pressure, and corrosion.
2.Physical properties.
NS112 nickel-based alloy has a high melting point and good thermal conductivity. Its melting point is about 1300 and its thermal conductivity is about 140 W (m·k). In addition, the alloy has good oxidation resistance and is able to resist the formation of oxides at high temperatures.
Fourth, the application field of NS112 nickel-based alloy.
NS112 nickel-based alloy has been widely used in the following fields due to its excellent properties:
1.Aero engines: Due to its high-temperature strength and corrosion resistance, NS112 nickel-based alloy is widely used in turbine discs, blades, superalloy fasteners and other components of aero engines.
2.Gas turbines: NS112 nickel-based alloy can be used in high-temperature components such as combustion chambers, discs, and blades of gas turbines.
3.Energy industry: NS112 nickel-based alloy can be used in heaters, heat exchangers, coolers and other components of nuclear reactors.
4.Chemical industry: Due to its corrosion resistance, NS112 nickel-based alloy can be used in containers, valves and other components of chemical equipment.
5. Material advantages of NS112 nickel-based alloy.
1.High-temperature strength: NS112 nickel-based alloy has high high-temperature strength and can maintain stable performance in high-temperature environments.
2.Resistance: NS112 base alloy has good corrosion resistance and can resist corrosion in corrosive environments.
3.Welding performance: NS112 nickel-based alloy has good welding performance and can be easily welded.
4.Good properties and physical properties: NS112 nickel-based alloy has high strength, toughness, fatigue strength and fracture toughness, as well as high melting point and thermal conductivity.
In conclusion, NS112 nickel-based alloy is a material with excellent properties, which is widely used in aviation, aerospace, energy, chemical and other industries. Its high-temperature strength, corrosion resistance, welding properties, and good mechanical and physical properties make it play an important role in these fields.