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...