High-use-temperature, high strength, anti high temperature oxidation and high-temperature corrosion-deformation resistance high-temperature alloy

Abstract

The invention discloses the high temperature alloy resisting high temperature oxidation and resisting high temperature corrupt, the weight percent of the chemical element: C<=0.08%, Si<=0.8%, Mn<=0.8%, Ni 40-50%, Cr 14-20%, Al 3.8-7.5%, Y<=0.3%, the remaining is Fe. The highest using temperature of the alloy can reached to the 1350 degree, the alloy has many merits such as the excellent high temperature resisting the oxidation ability, the high temperature resisting the causticity, the higher temperature intension, the realization of producing the high temperature of the alloy material by the cool, hot distortional process. So it can be applied in the producing of the high temperature model, the high temperature clamp, the thermocouple protecting pipe resisting the high temperature oxidation and resisting the high temperature corrupt, the shortcoming of the coating on the corundum, the double silicon molybdenum pipe and the surface of the high temperature alloy can be conquered, it solves the problem of using the thermocouple protecting pipe under the temperature 1200-1350 degree.

Description

technical field [0001] The invention relates to an alloy, in particular to a high-temperature alloy with high service temperature, high strength, high-temperature oxidation resistance and high-temperature corrosion resistance and deformation resistance. Background technique [0002] The usual superalloys refer to metal structural materials used at very high temperatures. They have certain high-temperature strength, high-temperature fatigue strength, high-temperature durability, high-temperature creep resistance, and high-temperature stress-relaxation resistance. The performance of this superalloy Requirements focus on high-temperature comprehensive performance and high-temperature strength. They appeared in the 1930s, and their development motivation mainly came from the needs of aero engines, especially since the advent of jet engines in the late 1940s, the demand for high-temperature alloys has increased day by day, and at the same time, their scope of use has expanded. ...

AI Technical Summary

Problems solved by technology

However, although the above-mentioned alloys are excellent, there are still deficiencies, mainly in the room for improvement in the high-temperature oxidation resistance of the alloy, insufficient high-temperature corrosion resistance, and insufficient high-temperature strength.