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Meeting 2022 TMS Annual Meeting & Exhibition
Symposium Additive Manufacturing of Refractory Metallic Materials
Presentation Title Enhancement of the Thermal Conductivity of Inconel 718 with the Addition of Tungsten
Author(s) Cory Groden, Eric Nyberg, Amit Bandyopadhyay
On-Site Speaker (Planned) Cory Groden
Abstract Scope 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.
Proceedings Inclusion? Planned:
Keywords Other, Additive Manufacturing, High-Temperature Materials


Additive Manufacture of Refractory Metals for Aerospace Applications
Additive Manufacturing of Refractory High Entropy Alloys
Case Studies on Additive Manufacturing of Refractory Materials
Design and Development of 3D Printable Nb-based Alloys for High Temperature Applications
Effect of Minor Titanium and Aluminum Addition on Ductility of Refractory High Entropy Alloy
Electron Beam Melting Additive Manufacturing of Pure Molybdenum
Enhancement of the Thermal Conductivity of Inconel 718 with the Addition of Tungsten
Fabrication of Pure Tungsten Using Electron Beam Powder Bed Fusion
Laser Assisted Cold Spray Deposition for Niobium and Tantalum Materials
Laser Beam Directed Energy Deposition Process Optimization for Refractory High Entropy Alloys
Laser Powder-bed-fusion of Pure Tungsten for Fusion Energy Applications
LPBF Printing of Nb for the Production of 3D Resonance Cavities
Mechanical Properties and Microstructural Characteristics of Additively Manufactured C103 Niobium Alloy
Refractory Development Framework Using Computational Modeling
Refractory Metals – Some Historical Observations
Study of Melt-pool Geometry and Microstructure in Pure W by Powder-feed Directed Energy Deposition
Thermal-chemical-fluid Flow of Dissimilar Species Mixing between Titanium and Refractory Metals
Union of Mo and Cr Alloys into a Single Multi-materials Part Using Laser-powder Directed Energy Deposition

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