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Meeting 2022 TMS Annual Meeting & Exhibition
Symposium Refractory Metals
Presentation Title Design of BCC High-entropy Alloys with Low Neutron Absorption Cross-section
Author(s) Pedro A. Ferreirós, Daniel J.M. King, Alexander J. Knowles
On-Site Speaker (Planned) Pedro A. Ferreirós
Abstract Scope High-entropy alloys (HEAs) are promising candidates for generation IV fission & fusion energy, offering high melting points, high strength and irradiation tolerance. However, their selection & design remains a major challenge with the vast size of the composition design space & predictive capability. In this work, we explore several million of element combinations using the Alloy Search and Predict (ASAP) software, which screens for HEAs candidates with single-phase stability at high temperature. Within the ASAP HEA screening, we further select for HEAs with lower thermal neutron absorption cross section. These HEAs have refractory metals (RM) as their main constituents providing great potential for application in extreme environments. These newly identified RM-HEAs have been experimentally product, their microstructure & properties analysed by experimental techniques and compared with phase predictions of ASAP and CALPHAD.
Proceedings Inclusion? Planned:
Keywords High-Entropy Alloys, Nuclear Materials, Characterization


Bending Creep Deformation of ODS MoLa with 0.6 vs 1.1 wt.%La
Design of BCC High-entropy Alloys with Low Neutron Absorption Cross-section
Design of MoWTaTiZr Refractory Multi-principal Element Alloys
Development of Heat-treatable Crss-Cr3Si-based Alloys: Microstructure, Oxidation, and Creep
Development of Novel Chromium-superalloys Strengthened by B2 Intermetallic Precipitates
Effect of Heating Rate and Substrate on the Oxidation Behavior of Hafnium Aluminum Diboride Thin Films
Flow Behavior and Associated Microstructures of Niobium at 1200 to 1500°C
Grain Boundary Doping as Effective Method to Improve Mechanical Properties in Ultra-fine Grained Tungsten
Grain Boundary Segregation Engineering in Technically Pure Molybdenum Examined via Three-point Bending Tests
High-throughput Engineering of Oxidation Behavior in Complex Refectory Alloys
NanoPhase Separation Sintering in Mo and Mo-W Based Systems
Nanostructured Tungsten Alloys for Nuclear Fusion
Oxidation Behavior of Mo-Si-B-Al Alloys at Elevated Temperature
Platinum-based Superalloys: Combating High Temperatures and Aggressive Environments
Realizing Sub-micron Tungsten and Tungsten Composite Microstructures via Deformable Punch Spark Plasma Sintering
Refractory High Entropy Alloys for Applications in Extreme Environments
Studies on the Phase Formation of Cobalt Contacted with Zinc Vapour
Sustainability-based Selection of Materials for Refractory High Entropy Alloys
Tensile Properties of Molybdenum & ODS MoLa Sheet at Elevated Temperatures
The Influence of Impurities on the Interfacial Chemistry of Niobium – Alumina High-temperature Refractories
Thermal Stability of Thin Rolled Potassium-doped Tungsten Sheets at Temperatures between 1100 °C and 1400 °C
Tungsten Grain Optimization and Composite Fabrication for Use in Fusion Reactors

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