Analysis of high temperature strength and thermal stability of GH3128 seamless pipe

　　GH3128 seamless pipe is a kind of high-temperature alloy material, which is composed of elements such as nickel, chromium, molybdenum, iron and titanium. This material has excellent high temperature strength and thermal stability, and is widely used in aviation, energy and other fields. In this paper, the high temperature strength and thermal stability of GH3128 seamless pipe will be analyzed from the perspectives of material characteristics, application scenarios and heat treatment process. The high temperature strength of GH3128 seamless pipe is one of the important characteristics of this material. In the high temperature environment, the material can maintain good mechanical properties, and plastic deformation and fracture are not easy to occur. This is mainly due to the high temperature work hardening effect of this material. At high temperature, GH3128 seamless pipe will have plastic deformation mechanisms such as grain boundary slip and dislocation slip, which will increase the strength and toughness of the material. At the same time, the material also has good creep resistance, and it is not easy to creep failure during long-term use at high temperature. The thermal stability of GH3128 seamless tube is also one of the important characteristics of this material. In high temperature environment, the material can maintain stable chemical composition and organizational structure, and it is not easy to have chemical reactions such as oxidation and corrosion. This is mainly due to the high temperature oxidation protection layer of this material. At high temperature, a dense oxide film will be formed on the surface of GH3128 seamless pipe to prevent further oxidation and corrosion. At the same time, the material also has good thermal corrosion resistance, and corrosion failure is not easy to occur in high temperature corrosive environment. GH3128 seamless pipe has a wide range of application scenarios. In the aerospace field, the material can be used to manufacture key components such as high-temperature structural parts, combustion chambers, turbine blades, etc.Improve the performance and life of aero-engines. In the energy field, the material can be used to manufacture high-temperature equipment such as petrochemical equipment, nuclear power equipment and gas turbines, so as to improve the safety and reliability of energy systems. In addition, the material is also widely used in medical, electronic, automotive and other fields.