GH4145 is a Ni-Cr-based precipitation-hardening deformed superalloy, which is mainly used as the aging precipitation strengthening phase, and is suitable for working temperatures below 800. The alloy exhibits good corrosion and oxidation resistance below 980, high strength below 800, good deformation resistance below 700, and good relaxation resistance below 540. GH4145 alloy also has superior formability and welding properties, and its main products include plates, strips, bars, profiles, forgings, rings, wires and tubes.
In terms of application, GH4145 alloy has been widely used in the manufacture of parts and components of aero engines working below 800, such as ring parts, structural parts and bolts that require high strength and corrosion resistance. In addition, planar wave springs, circumferential coil springs, coil compression springs, spring snaps and seals that operate below 540 and require medium or low stress and relaxation resistance are also typical applications for GH4145. Alloys are also used to make high-temperature components such as gas turbine blades.
Spring rings and seals are important application components of GH4145 alloy. Spring rings are typically used to connect two components on a shaft, providing a secure connection through elastic deformation while providing resistance to relaxation at high temperatures. Seals are used to prevent leakage of fluids or gases, and are required to maintain elasticity and tightness in high-temperature environments. GH4145 alloy is an ideal material choice for these parts due to its strength, oxidation resistance, and corrosion resistance at high temperatures.
The basic characteristics of GH4145 alloy include good corrosion resistance and high strength in the operating temperature range below 800 °C, especially at high temperatures. The alloy adopts phase aging precipitation strengthening phase, which has superior anti-deformation and anti-relaxation properties, and at the same time maintains good formability and welding performance in high-temperature environment.
In terms of material technical standards, GH4145 follows GB T14992, GJB 2612A, GJB3527A, HB Z140, Q 3B 4088, Q 3B 4198 and other related standards to ensure the reliability and consistency of its production and application.
Compared with other superalloys, GH4145 exhibits superior performance in the operating temperature range below 800, especially suitable for parts requiring high strength and corrosion resistance in high-temperature environments. Compared with some alloys, GH4145 has obvious advantages in resistance to deformation and relaxation, making it more reliable in high-temperature environments. In applications such as spring rings and seals, GH4145 alloy makes it a popular choice due to its performance in high-temperature and high-stress environments.