Hydrogen embrittlement in Nickel-base superalloys Nickel-based superalloys in the petrochemical industry

Abstract

Due to the excellent properties of nickel-based superalloys, it is often widely used in aircraft engines, petroleum, chemical and nuclear energy. However, the use of nickel-based superalloys in petrochemical industry is usually accompanied by hydrogen embrittlement, which will lead to a decrease in its mechanical properties. Through research, it is found that reducing the generation of σ phase in nickel-based superalloys will reduce the occurrence of hydrogen embrittlement, thereby solving this problem.