Nickel base casting high temperature alloy for high temperature mould

Abstract

A high-temp casting Ni-base alloy for high-temp die contains proportionally Co, Al, Cr, Ti, W, Mo, No, Ta, Hf, C, B, Y and Ni. Its advantages are high high-temp strength, plasticity, anti-oxidizing, performance and stability, and better thermal fatigure nature.

Description

technical field [0001] The invention is a nickel-based cast superalloy for high-temperature molds, which belongs to the field of metal materials Background technique [0002] Isothermal deformation is the main forming process of high-temperature structural material parts, and one of the key technologies of isothermal forging process is the mold material. The deformation temperature of nickel-based powder superalloys, such as Rene'95, Rene'88DT, CH-98 and other alloys, is above 1050 °C, while the deformation temperature of more advanced intermetallic compounds (TiAl, etc.) is above 1100 °C, so the The research and application of isothermal forging die materials used at temperatures above 1050°C is a direction of common concern for related professionals at home and abroad. [0003] A large number of high-temperature alloy molds have been researched and developed at home and abroad. Those with a temperature below 1000°C include IN100, MAR-M-200, X-40, Udimet 700, and Inconel 7...

AI Technical Summary

Problems solved by technology

[0004] At present, my country's advanced aero-engines all adopt the powder turbine disk route. The deformation temperature of the second-generation powder alloy FGH96 in China is about 1070 °C. At the same time, due to the high cost of fully enclosed isothermal forging equipment, it is not suitable for my country's national conditions, so it is urgently needed to be used in the atmosphere above 1050 °C. High-temperature mold materials to meet the requirements of isothermal forging of large-diameter powder turbine disks