GH3625 superalloy is an alloy material with excellent high-temperature properties, which is widely used in aviation, aerospace, electric power, chemical industry and other fields.
This article will introduce the chemical composition, hardness, density, heat treatment, mechanical properties, mechanical properties, application fields and welding process of GH3625 superalloy in detail.
Chemical composition: GH3625 superalloy is mainly composed of metal elements such as Ni, Cr, Fe, Mo, and Nb.
Among them, NI accounted for the highest proportion, about 58%;CR accounts for about 20%;MO accounts for about 9%;Fe accounts for about 5%;NB accounts for about 3%.
In addition, the alloy also contains a small amount of elements such as Cu, Mn, Si, and C.
Hardness & Density:
GH3625 superalloy has high hardness and density.
At room temperature, its hardness is 220HB;The density is 82g/cm³
As the temperature increases, its hardness gradually increases, but the density decreases slightly.
Heat treatment: The heat treatment process of GH3625 superalloy is very important.
After solution treatment and aging treatment, the performance of the alloy can be effectively improved.
The solution treatment temperature is generally 1150-1200, and the time is about 1 hourThe aging temperature is generally 800-900, and the time is about 8 hours.
Mechanical properties: GH3625 superalloy has excellent mechanical properties.
In a high-temperature environment, its strength, toughness and oxidation resistance are very good.
The tensile strength of this alloy is about 800MPa and the yield strength is about 300MPa
Mechanical properties: The mechanical properties of GH3625 superalloy are also excellent.
It has good ductility and plasticity in high-temperature environments, and can withstand large pressure and tension.
In addition, the fatigue life of the alloy is also very long at high temperatures.
Applications: GH3625 superalloy is widely used in aviation, aerospace, electric power, chemical industry and other fields.
In the aerospace field, the alloy is mainly used to manufacture key components such as high-temperature composite parts, gas turbine impellers, and gas turbine nozzlesIn the field of electric power, the alloy is mainly used in the manufacture of high-temperature stoves, fuel cells, nuclear power plants and other equipment;In the chemical industry, the alloy is mainly used in the manufacture of high-temperature reactors, high-temperature pipelines, high-temperature corrosion equipment, etc.
Welding process: The welding process of GH3625 superalloy is relatively complex and needs to be selected according to the actual situation.
Generally speaking, TIG welding, MIG welding, PLSMA welding and other methods are recommended for welding.
During the welding process, attention needs to be paid to controlling the temperature and protective atmosphere to avoid the degradation of the welding quality due to oxidation or other factors.
Summary: GH3625 superalloy is a material with excellent properties and a wide range of applications.
This article gives a detailed introduction to its chemical composition, hardness, density, heat treatment, mechanical properties, application fields and welding processes, hoping to help readers.
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