Research Progress and Development Trend of Nickel-based Superalloys

With the rapid development of aerospace, equipment manufacturing, nuclear power industry and other fields,the demand for superalloys is increasingly growing, and more stringent performance requirements are put forward. Nickel-based superalloys are highly favored due to their high temperature strength, excellent comprehensive performance in antioxidation, antifatigue and corrosion resistance. A detailed overview of nickel-based superalloys was given, the development history and main application fields of nickel-based superalloys were introduced, the common phases and strengthening mechanisms in nickel-based superalloys were expounded, the research status of the return material and heat treatment process of nickel-based superalloys were reviewed, and the existing problems in the current research were pointed out, and finally, the future development trend of nickel-based superalloys was looked forward to.