GH1139 (GH139) superalloy is a nickel-chromium-iron-based solution-strengthened alloy with excellent high-temperature corrosion resistance and oxidation resistance. This alloy exhibits satisfactory thermal strength and high plasticity in the temperature range below 700, so it is widely used in various high-temperature environments.
The chemical composition of GH1139 (GH139) superalloy includes elements such as carbon, chromium, nickel, molybdenum, tungsten, aluminum, niobium, titanium, and iron. Among them, the content of carbon element does not exceed 012%, chromium content is between 23 26%, and nickel content is between 15 and 18%. This alloy also contains a certain amount of elements such as molybdenum, tungsten, aluminum, niobium, and titanium, the addition of which helps to improve the strength and toughness of the alloy.
GH1139 (GH139) superalloy has good cold and hot working and welding process properties, which can be easily processed and manufactured. This alloy is widely used in a variety of high-temperature equipment due to its excellent corrosion and oxidation resistance in high-temperature environments, as well as its ability to maintain stable performance and strength.
Deformed superalloy refers to a class of alloys that can be processed by hot and cold deformation and has a wide range of operating temperatures. GH1139 (GH139) superalloy is a type of deformed superalloy. According to the different heat treatment processes, deformed superalloys can be divided into solution-strengthened alloys and age-strengthened alloys. GH1139 (GH139) superalloy is a solution-strengthened alloy with good mechanical properties and comprehensive strength and toughness indexes.
The use temperature range of solution-strengthened alloys is 900 1300, and the maximum oxidation temperature is 1320. For example, GH128 alloy has a tensile strength of 850MPa and a yield strength of 350MPa at room temperature; 1000 tensile strength is 140MPa, elongation is MPa, the durability of stress is 200 hours, and the elongation is 40%. Solution alloys are generally used to make aviation and aerospace engine combustion chambers, casings and other components.
The service temperature of age-strengthened alloy is -253 950, which is generally used to make structural parts such as turbine disks and blades of aviation and aerospace engines. The working temperature of the alloy for making the turbine disc is -253 700, which requires good high and low temperature strength and fatigue resistance. For example, GH4169 alloy has a maximum yield strength of 1000MPa at 650; The alloy temperature of the blade can reach 950, for example: GH220 alloy, the tensile strength of 950 is 490MPampa, and the lasting life is more than 40 hours.
GH1139 GH139 superalloy mainly provides structural forgings, cakes, rings, bars, plates, pipes, strips and wires for aerospace, aviation, nuclear energy, and petroleum civil industries.