A Ni-Cr based precipitation hardening type deformable high-temperature alloy material and a preparing method thereof

Abstract

The invention discloses a Ni-Cr-based precipitation-hardening deformable superalloy material and a preparation method thereof. Required elements are melted in a vacuum induction furnace at a melting temperature of 1450-1460°C; the content of each element is adjusted during the melting process, Make the weight ratio meet the design requirements, pour the solution into a consumable electrode; remelt and refine the poured consumable electrode in an electroslag furnace, and remelt it into an electroslag ingot; heat and forge the electroslag ingot to make a steel rod ; Air-cool the steel rod to room temperature after forging; treat the surface of the steel rod; take samples from the finished steel rod to check the mechanical properties, and carry out the corresponding mechanical property test. The beneficial effects of the present invention are: the Ni-Cr-based precipitation-hardening deformed superalloy material and the alloy material prepared by the preparation method make the transverse performance and longitudinal performance relatively close, while improving the transverse performance, the alloy can also be improved The heat resistance performance in the use process can improve the service life of the products made of this kind of alloy, and has good economic and social benefits.

Description

technical field [0001] The invention relates to a deformed superalloy material and a preparation method thereof, in particular to a Ni-Cr-based precipitation-hardening deformed superalloy material and a preparation method thereof, belonging to the technical field of superalloy material applications. Background technique [0002] Superalloys play an important role in the development of aero engines and industrial gas turbines. At present, high-temperature alloys are divided into three types of materials: 760°C high-temperature materials, 1200°C high-temperature materials and 1500°C high-temperature materials, with a tensile strength of 800MPa. In other words, it refers to high-temperature metal materials that work for a long time at 760--1500°C and under certain stress conditions. They have excellent high-temperature strength, good oxidation resistance and thermal corrosion resistance, good fatigue performance, fracture toughness and other comprehensive properties. It has be...

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Problems solved by technology

In other words, it refers to high-temperature metal materials that work for a long time at 760--1500°C and under certain stress conditions. They have excellent high-temperature strength, good oxidation resistance and thermal corrosion resistance, good fatigue performance, fracture toughness and other comprehensive properties. It has become an irreplaceable key material for the hot end parts of military and civilian gas turbine engines. At present, with the continuous increase in the power of gas turbines, the demand for high-performance superalloy materials is also increasing, and the content of existing alloy materials is relatively high. , the solution is poured so that it cannot consume its own electrodes, the heat resistance is poor, and the manufacturing cost is high and the manufacturing is complicated, resulting in a large difference between the transverse performance and longitudinal performance of the alloy material, and the heat resistance during use is poor