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Meeting 2022 TMS Annual Meeting & Exhibition
Symposium Additive Manufacturing of Refractory Metallic Materials
Presentation Title Design and Development of 3D Printable Nb-based Alloys for High Temperature Applications
Author(s) Ishtiaq Ahmed Fazle Rabbi, Prithvi Dev Awasthi, Aidin Imandoust
On-Site Speaker (Planned) Ishtiaq Ahmed Fazle Rabbi
Abstract Scope Additive manufacturing (AM) offers ample opportunities to broaden the application of refractory metals and alloys by alleviating manufacturing challenges, such as high-temperature thermomechanical processing and machining. Nb, with a bulk density of 8.4 g/cc and good room temperature ductility, is a viable base material for the development of new AM alloys with superior high temperature performance and acceptable additive manufacturing attributes. This work aims to examine the compatibility of Nb-xW-xTi-1HfC wt.% alloys with laser-based additive manufacturing technologies. Chemical compositions of interest were selected based on the CALPHAD simulations, followed by powder prototyping and process parameter development. The microstructure and mechanical properties of AM fabricated specimens were characterized to determine the present phases, to analyze grain size and orientation, and to compare the mechanical performance of the experimental compositions. The acquired data was also used to validate the simulation results, finalize the chemical composition(s), and further improve the process parameters.
Proceedings Inclusion? Planned:
Keywords Additive Manufacturing, Characterization, Other


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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