What is Inconel 718 materials?
Inconel 718 alloys is a precipitation-hardening nickel-iron-based superalloy containing niobium and molybdenum. Its microstructure is austenite and has excellent comprehensive properties. It is one of the most widely used superalloys. The alloy has good comprehensive properties in the temperature range of -253 to 700 °C, the yield strength below 650 °C ranks first in the deformed superalloy, and has good fatigue resistance, radiation resistance, oxidation resistance, corrosion resistance, and good performance. Good processing performance and welding performance. It can manufacture various parts with complex shapes, and has been widely used in the above temperature range in aerospace, nuclear energy, petroleum industry and extrusion dies.
Why is Inconel 718 not easy to machine?
The reason behind this is that Inconel 718 has lower thermal conductivity and higher tensile strength among all three materials. No heat dissipation occurs in the shear zone, which reduces tool wear compared to the other two materials.
Fields of application for Inconel 718
Inconel718 nickel-based superalloy material has been used to make aero-engine turbine disks, rings, elastic elements, sealing elements and welded structural parts; make liquid hydrogen, liquid oxygen rocket engines in turbine rotors and other components; make nuclear energy industrial applications. Various elastic elements and lattices; manufactures a wide range of parts for applications in the petroleum and chemical industries.
Aerospace engineering, rocket engines, thrust reversers, ships, chemical processing units, pressure vessels, pollution control systems and nuclear power production reactions, cryogenic storage vessels, high-strength bolts and hot extrusion tools, turbine engines, fasteners, fuel and exhaust system.
Inconel grades are suitable for use in the production of parts used in harsh environments, such as turbocharger rotors and seals, motor shafts for submersible electric pumps, steam generators, heat exchanger tubes, firearm silencer blast plates and machine guns, on aircraft Black box recorders, etc.
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