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About this Abstract
Meeting TMS Specialty Congress 2026
Symposium 4th World Congress on High Entropy Alloys (HEA 2026)
Presentation Title Microstructures and Mechanical Properties of Uranium Containing High Entropy Alloys
Author(s) Nathan E. Peterson, Jason C. Cooley, Brandon Bocklund, Rodney J. McCabe, Mary O'Brien, B. Musico, R. Bloom, Kester D. Clarke, Amy J. Clarke
On-Site Speaker (Planned) Nathan E. Peterson
Abstract Scope Recent efforts to design novel, high-burnup nuclear fuels for advanced compact fission reactor designs for power generation and/or space exploration have explored the high entropy alloy (HEA) design motif. U-containing HEAs have a potential to not only increase the BCC-phase stability range but also improve resistance to radiation-induced defect accumulation, all while retaining fuel performance. However, due to the vast range of composition space (> 1 trillion potential compositions), critical exploration steps must be taken to identify compositions of interest (e.g. single BCC-phase stability, ideal mechanical properties). So far in this work, alloys in four systems (U-MoNbTi, U-NbTiTa, U-MoNbTiTa, U-TiVCrZrNbMoTaWFe) have been identified, produced and characterized. Initial results on microstructures and mechanical properties will be discussed.
Proceedings Inclusion? Undecided

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

A High-Throughput Framework for HEA Design & Applications to Metalloid-Containing Systems
A Novel Phenomenological Approach for Predicting the Transport Properties of Transition-Metal High Entropy Alloys at Elevated Temperatures
Accelerated Processing of High-Entropy Alloys and Ceramics Using Cryogenic Milling and Spark Plasma Sintering
Accelerated R&D With Autonomous Experimentation & Self-Driving Labs
Accelerating HEAs Development Through the Alloy Optimization Software
Achieving Combined High Temperature Strength and Tensile Ductility in Refractory Compositionally Complex Alloys
Additive Manufacturing Meets High-Entropy Alloys: Printability Maps, Microstructure Control, and Design Opportunities
Advancing HEA Design: Database Expansion and Integrated Modelling
An Efficient Framework for Predicting Order in Multicomponent Systems
Bayesian Blacksmithing: Discovering Thermomechanical Properties and Deformation Mechanisms in High-Entropy Refractory Alloys
CALPHAD-Guided Design of Ru-B2 Strengthened Nb-Based Refractory Alloys
Chemical Short-Range Order in High-Entropy Alloys: Detection, Thermodynamics and Kinetic Nature and Property Control
Chemical Synthesis of HEA Powders from Metal Oxides for Catalyst Applications
Compositionally Complex Alloy Nanoparticles via Nanosecond Laser-Induced Dewetting
Corrosion and Passivation of Multi-Principal Element Alloys in AqueousSolutions
Data-Driven Insights Into Magnetocaloric Behavior in High-Entropy Alloys
Deformation and Failure of TiZrNbHfTa Refractory High-Entropy Alloys
Deformation Behaviour of GRX-810 at Extreme Temperatures
Design and Development of Lightweight Medium- and High-Entropy FeMnAlC Steels
Design Opportunities for Additive Manufacturing of Compositionally Complex Refractory Alloys
Designing Oxidation-Resistant AlVCrZrNbx Lightweight Refractory HEAs Through Nb Variable via Powder Metallurgy
Design, Synthesis, and Properties of WTaCrVHf High Entropy Alloys
Development of High Specific Modulus Multicomponent Alloys with an FCC Structure
Development of NiCoFeCrAl Based High Entropy Alloys for Hydrogen Fueled Turbine System
Development of Processing Maps for Medium Entropy Alloy GRX-810 by HVOF
Direct Observation of Principal Elements and Local Ordering on HEA Surfaces
Discovery of High-Strength, High-Plasticity, and Oxidation-Resistant RHEAs Through Data-Driven Modeling
Effect of Mechanical Alloying on the Mechanical and Thermal Properties of FeCoCuNbMo High-Entropy Alloy
Effect of Si Addition on Microstructure and Tensile Properties of Cast CrFeCoNi Alloys
Effect of V2O5 Addition on the Reduction Processing of Equimolar CoFeNiMn Alloys Using Dilute Hydrogen
Effects of Entropy Stabilization and Phase Evolution on Hydrogen Storage Activation in TiFeCoNiCu High-Entropy Alloys
Effects of Precipitate-Forming Species and Grain Refinement on the Microstructural Evolution in Neutron-Irradiated CrFeMnNi and CrFeMnNiTiAl Compositionally Complex Alloys
Efficient Design of Quinary Alumina-Forming Refractory Multi-Principal Element Alloys
Element-Specific Magnetic Behavior in FeCrMnCoNi, CrCoNi and MnCoNi Multi Principal Element Alloy Thin Films
Element Substitution Effects on the Bi Site in RE(O, F)BiS2 with High-Entropy-Alloy Type RE Site
Fast‑Track Microstructure Design in HEAs Using Pseudo‑Binary Diffusion Couples
HEAs with Exceptional Combination of Strength and Ductility
High-Entropy Alloys: Optimizing Processing Parameters and Establishing Composition-Property Relationships for Advanced Turbine Aeroengine Applications
High-Entropy Oxide Catalysts for the Reductive Depolymerization of Organosolv Iignin
High-Throughput Design and Experimental Validation of Low-Modulus BCC High-Entropy Alloys for Next-Generation Biomedical Implants
High Temperature Oxidation of AlCrFeNiTiₓ High Entropy Alloys
Historical and Contemporary Development of Nb-based Alloys
Improved Oxidation Resistance of NbTiZr under Thermal Cyclic Conditions
In-Situ Spatiotemporal Characteristics of Deformation: From Microstructurally Simple Metals to Complex Concentrated Alloys
Influence of Chemical Short-Range Order on Stacking Fault Energy and Deformation in a CoCrNi-based Alloy
Interplay of Electronic Structure and Phase Evolution in Designing Refractory Multi Principal Element Alloys (RMPEAs) for Extreme Environments
Irradiation Resistance of High-Entropy Alloys for Accelerator Beam Window Applications
Learning Alloying Strategies from Small Datasets and Cheap Parameters to Increase Room Temperature Ductility of Tungsten-Based Refractory High Entropy Alloys
Linking Chemical Short-Range Order to Defect Dynamics in High-Entropy Ceramics
Lowering the Minimum Threshold of Aluminum for Protective Oxide in FeCrAl Alloys via the Third Element Effect
Machine Learning–Driven Optimization of AlCrFeCoNi High-Entropy Alloys for High-Temperature Thermal and Mechanical Performance
Mechanistic Insights Into Corrosion of Ultrafine- and Coarse-Grained HEAs: Roles of Grain Size and Passive Film Evolution
Microstructures and Mechanical Properties of Uranium Containing High Entropy Alloys
Mitigating Grain Coarsening in Nanocrystalline AlCoCrCuFeNi High Entropy Alloys Through Minor Solute Doping
More Phases, Less Damage
Multiple Deformation Mechanisms in a 3D-Printed CrMnFeCoNi High-Entropy Alloy
Neutron Diffraction as a Technique for Detecting Chemical Short-Range Order in CrCoNi Alloy
On the Nature of Chemical Short-Range Order Evolution
Phase Equilibria of the Al-Ti-Nb-Zr-Ta System
Phase Evolution Sequence in a Precipitation-Strengthened High-Entropy Alloy Fabricated by Additive Manufacturing
Predicting CRSS in High-Entropy Alloys Using Physics-Informed Symbolic Regression
Process-Structure Relationships in Additively Manufactured MoNbTaTi Refractory HEA
Protection by Complex Oxides: Limitations and Perspectives
Radiofrequency Plasma Spheroidization of Mechanically Alloyed Complex concentrated alloy Al0.5NbTa0.8Ti1.5V0.2Zr
Refractory High-Entropy Alloys for Fusion Reactor Plasma-Facing Components Under Extreme Heat Flux
Refractory high entropy alloys for fusion energy
Revealing the Impact of the Chemical Short-Range Order on Hydrogen Embrittlement of the Equiatomic CoCrNi Medium-Entropy Alloy
Role of Short-Range Order and Strain Rate on Dislocation-Mediated Plasticity in CrCoNi Medium-Entropy Alloys
Solid State Reduction Synthesis of Refractory High Entropy Alloy CrTaVW: Reduction Mechanism and Microstructural Development
Solidification Modeling and Validation for Novel Refractory Multi-Principal Element Alloys Produced in Additive Manufacturing Conditions
Surface Reactions in Refractory Multi-Principal Element Alloys
Swift Heavy-Ion Irradiation in Sr-Based High-Entropy Perovskites
Synchrotron-Based X-Ray Absorption and X-Ray Magnetic Circular Dichroism Spectroscopic Studies of Temperature-Dependent Magnetism in (CoCuFeNiTi)3O4 High Entropy Spinel Oxide
The Negative Correlation Between Twinning Stress and Stacking Fault Energy in Single Crystals of CrCoNi Alloys
Thickness-Dependent High-Entropy-Alloy Nanoparticle Formation via Pulsed Laser-Induced Dewetting
TiZrAlNbMo High Entropy Alloys With Compositional Gradient - Phase Content Investigation
Tribocorrosion Properties of Lightweight High Entropy MgTiCuZrNb Alloy
Understanding Compositional Effects on the Oxidation Behavior of Binary Nb-Ti and Nb-Zr Alloys
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