GH3625 superalloy is an important special alloy material, with excellent high-temperature strength and corrosion resistance, and is widely used in aerospace, petrochemical, nuclear energy and other fields. The alloy is mainly composed of nickel, chromium, molybdenum, iron and other elements, with high hardness and density, and good mechanical and mechanical properties can be obtained after specific heat treatment. This article will introduce the material, chemical composition, hardness, density, heat treatment, mechanical properties, mechanical properties, application fields and welding process of GH3625 superalloy in detail.
1. Material and chemical composition.
GH3625 alloy is a nickel-based superalloy, and its chemical composition mainly includes nickel (Ni), chromium (Cr), molybdenum (Mo), iron (Fe) and other elements. The specific values are as follows:
Nickel (Ni): about 55%.
Chromium (Cr): about 22%.
Molybdenum (Mo): about 9%.
Iron (Fe): about 3%.
In addition to the above elements, GH3625 alloy also contains a small amount of titanium (Ti), aluminum (Al) and cobalt (Co), the addition of these elements can significantly improve the high-temperature strength and oxidation resistance of the alloy.
2. Hardness and density.
The hardness of GH3625 alloy is generally above 200HBW (Brinell hardness) and the density is about 84g/cm³。This high hardness and relatively high density make GH3625 alloy maintain good mechanical properties in high temperature and corrosive environments, and is suitable for complex engineering environments.
3. Heat treatment.
GH3625 alloy can be conditioned by solution treatment and aging treatment. Solution treatment is generally performed in the temperature range of 1150-1200, followed by rapid cooling to prevent the precipitation of hard phases. Aging is carried out at lower temperatures to further improve the strength and heat resistance of the alloy.
4. Mechanical properties and mechanical properties.
After proper heat treatment, GH3625 alloy exhibits excellent mechanical and mechanical properties, including high-temperature strength, tensile strength, and ductility. In the high-temperature environment, the alloy can still maintain good strength and toughness, and has good fatigue resistance and deformation resistance.
Fifth, the field of application.
GH3625 alloy is widely used in aerospace, petrochemical, nuclear energy and other high-temperature and high-pressure fields due to its excellent high-temperature strength and corrosion resistance. For example, it plays an important role in aero engine parts, chemical reactors, nuclear reactor structural materials, etc.
6. Welding process.
For the welding process of GH3625 alloy, caution is required when choosing the appropriate welding method and welding material. Common welding methods include argon arc welding, electron beam welding, plasma arc welding, etc., while commonly used welding materials include GH3625 alloy welding wire and GH3625 alloy electrode. During the welding process, attention should be paid to controlling the welding parameters and heat input to ensure that the quality and alloy properties of the welded joint are not affected.
In summary, GH3625 superalloy, as an excellent special alloy material, has a unique chemical composition, excellent mechanical properties and a wide range of application prospects. With the continuous development of the field of high temperature and high pressure, GH3625 alloy will continue to play an important role and be more widely used in future engineering practice.
Form: plates, rods, tubes, steel strips, wires, forgings, forging pipes, forging plates, forging rods, round bars, plates, thin plates, seamless pipes, welded pipes, round bars, wires, steel plates, round rounds, strips.
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