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Meeting 2022 TMS Annual Meeting & Exhibition
Symposium Additive Manufacturing of Refractory Metallic Materials
Presentation Title Effect of Minor Titanium and Aluminum Addition on Ductility of Refractory High Entropy Alloy
Author(s) Surya T Bijjala, Pankaj Kumar
On-Site Speaker (Planned) Surya T Bijjala
Abstract Scope Refractory metal and alloys have been considered viable structural materials for high-performance engines operating at a very high temperature. The limited manufacturing due to poor ductility and fracture toughness of these materials is the major barrier to use. These characteristics of refractory metal and alloys are primarily due to interstitial impurity at grain boundaries. Alloy re-designing can improve the ductility and fracture toughness of refractory metal and alloys by reducing the GB sensitivity for interstitial elements. The present research is focused on single-phase refractory high entropy alloy (RHEA) MoVNbTaW-X, where X [= titanium (Ti), and aluminum (Al)]. The effect of Ti and Al addition on the ductility and strength both at room temperature and high temperature is rationalized in additively manufactured by powder metallurgy, MoVNbTaW RHEA.
Proceedings Inclusion? Planned:
Keywords High-Entropy Alloys, High-Temperature Materials, Additive Manufacturing


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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