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Meeting 2022 TMS Annual Meeting & Exhibition
Symposium Additive Manufacturing of Refractory Metallic Materials
Presentation Title Additive Manufacture of Refractory Metals for Aerospace Applications
Author(s) Omar Mireles, Jeffrey W. Sowards
On-Site Speaker (Planned) Omar Mireles
Abstract Scope High temperature refractory metals are required for a number of high temperature propulsion, power, and thermal protection applications. Refractory metals can be expensive, difficult to manufacture, tend to have high buy-to-fly ratios, and few vendors. Refractory metal additive manufacture (AM) is in development and like traditional AM alloys requires substantial post-processing to include powder heat treatment, surface finish enhancement, inspection, and machining before placed in service. The combination of limited feedstock sources, high temperature processing, oxygen sensitivity, fracture prone nature, and need for elevated temperature mechanical testing limit the number of qualified facilities capable of post-processing AM refractory materials, which add to cost and schedule constraints. However, properly implemented refractory metal AM can overcome existing manufacture limitations by greatly increasing design flexibility, new material options, reduced price, decreased lead-time, and leverage the ever growing AM commercial supply base.
Proceedings Inclusion? Planned:
Keywords 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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