|About this Abstract
||2022 TMS Annual Meeting & Exhibition
||Additive Manufacturing of Refractory Metallic Materials
||Enhancement of the Thermal Conductivity of Inconel 718 with the Addition of Tungsten
||Cory Groden, Eric Nyberg, Amit Bandyopadhyay
|On-Site Speaker (Planned)
Tungsten is a highly used material in additive manufacturing due to its high hardness, tensile strength, and impact resistance. In addition, the thermal conductivity of tungsten is high. In this project, Inconel 718 and tungsten bimetallic parts were printed using a directed energy deposition (DED) metal printer. The hypothesis was that the addition of tungsten layers would increase the thermal conductivity of the bimetallic. The thermal tests demonstrated an increase in thermal conductivity of the bimetallic than pure Inconel 718. The printed bimetallic showed no cracking at the interface or in the pure alloys when tungsten was printed on Inconel 718. Furthermore, a hardness profile was done at the interface of the bimetallic, which showed a smooth linear transition between the hardness of each of the pure alloys. This presentation will discuss the processing, microstructure, mechanical and thermal properties of Inconel 718 and tungsten bimetallic parts.
||Other, Additive Manufacturing, High-Temperature Materials