  This paper reviews the use of relatively new manufacturing method called as
additive manufacturing, most often mentioned as 3D printing in fabrication of
high performance superalloys. The overview of the article describes the
structure, property, processing, performance relationship of the fabrication
process and the superalloys. The manufacturing methods such as Electron Beam
Melting, Laser Beam Melting and Direct Energy Deposition used to fabricate
commercially available alloys are explained. The microstructure / grain
structure resulting from directional building, complex thermal cycles is
discussed. An overview of the properties of the superalloys and their
performance as well as applications is presented.
