|About this Abstract
||2022 TMS Annual Meeting & Exhibition
||Additive Manufacturing for Energy Applications IV
||J-11: Microstructural and Mechanical Investigation of IN718 Nickel-based Superalloy Fabricated via Laser-based Additive Manufacturing (LBAM)
||Hassan Ghorbani, Mohammad Eizadinia, Hiwa Khledi, Behnam Rasti
|On-Site Speaker (Planned)
There has been increasing interest in the use of various additive manufacturing methods of Nickel-base superalloys due to their unique applications in different industries such as aerospace and propulsive industries. This paper aims to produce IN718 by laser metal deposition. Process parameters windows were identified and optimized where fully dense samples were obtained with no surface defects. Optical and electron microscopes equipped with EDS and X-ray diffraction analyses were done to investigate microstructural features and phases analysis, respectively. Furthermore, in order to investigate the mechanical properties (as a long-term high-temperature operation) of fabricated AM IN718, the creep, tensile and hardness tests have been carried out. This paper provides the feasibility of laser-based additive manufacturing (LBAM) of IN718 Ni-based superalloy, the influence of the process parameters on microstructure, mechanical properties, and the effectiveness of various heat treatment regimens, and the quality assurance of produced specimens with Non-destructive methods.
||Additive Manufacturing, Solidification, High-Temperature Materials