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GH6783


GH6783 is a Co-Ni-Fe-based precipitation hardening ferromagnetic anti-oxidation expansion deformation superalloy with a service temperature of less than 750 ℃. By adding a large amount of aluminum and niobium, the alloy can sink in aging γ- Ni3 (Al, Nb) diffusion strengthened phase and bulk β- NiAl。 The alloy can reach the level of complete oxidation resistance at 750 ℃, and has excellent room temperature, high temperature mechanical properties, low coefficient of thermal expansion, low density and other characteristics. During thermal denaturation β- NiAl phase to control the size of fine particles. The microalloy has good hot working properties and cold forming process properties; GH6783 superalloy is used to manufacture clearance control components such as sealing rings, bearing rings and chassis of advanced aero-engines. Because the alloy has the oxidation resistance, excellent mechanical properties and low thermal expansion coefficient of superalloy, it can also be used for fasteners and bearing shafts such as ground gas turbines, as well as air ducts of rocket engines.

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