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Meeting 2022 TMS Annual Meeting & Exhibition
Symposium Advances in Multi-Principal Elements Alloys X: Alloy Development and Properties
Presentation Title Thermal and Irradiation-induced Grain Growth in Nanocrystalline High-entropy Alloys
Author(s) William J. Weber, Yanwen Zhang, Chinthaka Silva, Timothy G Lach, Walker L Boldman, Philip D Rack, Li Jiang, Lumin Wang, Graeme Greaves, Matheus A Tunes, Stephen E Donnelly
On-Site Speaker (Planned) Yanwen Zhang
Abstract Scope Grain growth in nanocrystalline materials is generally thermally activated but can be driven by irradiation-induced defects and structural instabilities at lower temperatures. In nanocrystalline high-entropy alloys (HEAs), Ni20Fe20Co20Cr20Cu20 and (NiFeCoCr)97Cu3, microstructural evolution under irradiation with Ni and Au ions at room temperature has been investigated. Experimental results suggest that, similar to nanocrystalline oxides, irradiation-induced grain growth is driven by the coupling of electronic and ballistic energy dissipation that leads to faster grain growth than under thermal annealing at 300C. Grain growth follows a power law dependence that suggests irradiation-induced instabilities at grain boundaries lead to rapid local rearrangements of atoms. The additive effect of electronic and ballistic energy dissipation on grain growth opens new possibilities to modify HEAs at relative low temperatures.
Proceedings Inclusion? Planned:
Keywords High-Entropy Alloys, Nanotechnology, Process Technology

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

A Comparison of the Sliding Wear of Carbon-doped Fe40.4Ni11.3Mn34.8Al7.5Cr6 and CoCrFeMnNi High Entropy Alloys with 316 Stainless Steel at 293 K and Cryogenic Temperatures
A High-throughput Strategy to Study Phase Stability, Microstructure Development and Mechanical Properties in Complex Concentrated Alloys
A Novel Approach to Designing Low-density CCAs Exploiting Multi-element Eutectics
A Periodic Table for HEA Design
Additive Manufacturing and Mechanical Properties of Al18Co30Cr10Fe10Ni32 Eutectic Multi-principal Elements Alloy Fabricated by Laser-powder Bed Fusion
Additive Manufacturing of High-entropy Alloys for High Strength and Lightweight Structures
Additive Manufacturing of High-performance High-entropy Alloys
Alloy Design, Microstructure Analysis, Mechanical Testing and Weldability of a Novel CoCuFeMnNi-based High Entropy Alloy
Antimicrobial Properties of a Multicomponent Alloy
Characteristics of Uniaxial Mechanical Properties of Single Crystals of FCC High- and Medium-entropy Alloys
Chemical Effect on the Strength of Refractory High Entropy Alloys with Severe Local Lattice Distortion
Composition- and Grain-size-dependent Hydrogen Uptake and Its Effect on Plastic Deformation of Face-centered Cubic High-entropy Alloys
Compositionally Complex Ceramics (CCCs)
Compositionally Complicated Titanium Rich Alloy for Biomedical Application
Corrosion of Single-phase Ni-Fe-Cr-Mo-W-X Non-equimolar Multi-principal Element Alloys
Data-guided Exploration of High Entropy Alloys for Cryocooler Applications
Deformation Behavior of a Multicomponent L21 Heusler Alloy
Design of Multi-principal Element Alloys for Use in a Broad Range of Temperatures
Development of a High Entropy Alloy Alx(CoCrCuFeNi)1-x for Diverse Security Applications
Discovery of New Refractory High-entropy Alloys with Improved High-temperature Properties
Dynamic Deformation Behaviors in Single BCC Phase Refractory High-entropy Alloys
Effect of Fe Contents on Plane Stress Fracture Toughness of Fex(CoCrMnNi)100-x High Entropy Alloys at Cryogenic Temperature
Effect of Valence Electron Concentration on the Mechanical Properties of Non-equiatomic Refractory Multi-principal Element Alloys
Expanding the Design Space of Ti-V-Nb-Hf Refractory High-entropy Alloys through Al-alloying
Experimental Investigations of an Additively Manufactured Multi-principal Element Alloy with Extraordinarily High Strength
Exploring Alloy Design Pathways for Beneficial Short-range Ordering
Exploring Passivity of Multiple Principal Element Alloys
Friction Stir Processing of Non Equiatomic High Entropy Alloy
Gradient Cell Structured High-entropy Alloy with Superior Mechanical Behavior
Heterogeneous Ultrafine Grain Formation by Severe Plastic Deformation in CrMnFeCoNi HEAs
Hydrogen-enhanced Ductility in CoCrFeMnNi High-entropy Alloy Additively Manufactured by Selective Laser Melting
Hydrogen Storage Characteristics of Multi-principal Element Alloys and Composites
Improved Properties of Non-equiatomic MnFeCoNiCu HEA Compared to Its Equiatomic Counterpart
Investigation of Al2 (Co, Crx, Fey, Ni)14 Precipitation Strengthened Transition Metal High Entropy Alloys
Low Density Multi-principal Element Alloys: A Review
Mapping Processibility in the Family of Additive Manufacturing for MPEAs
Mechanisms of Creep in NiCoCr and ODS-NiCoCr Multi-principal Element Alloys
Micro-mechanical Properties and Plastic Deformation Behavior of Refractory Low-to-High-entropy Alloys at Different Temperatures
Microalloying Technology: A Promising Strategy for Design of Nanocrystalline High-entropy Alloy Films
Mixed Metal Oxide Reduction: A Novel Ceramic Derived Processing Route for Multi-principal Element Alloys
Multi-principal Elements Alloys as Filler Metals for Similar and Dissimilar Joining Applications
Nanostructured Oxide-dispersion-strengthened CoCrFeMnNi High Entropy Alloys: Processing, Microstructures, and Thermal Stability
NOW ON-DEMAND ONLY - Development of Multi-principal-element Alloys and the Applications in Dissimilar Metals Welding
Oxidation Characteristic of Complex Concentrated Alloys FeAlCrV and FeAlCrMo
Plastic Deformation and Defect Recovery of NiTi-based B2-phase High-entropy Intermetallic Compounds
Predicting Temperature-dependent Ultimate Strengths of BCC High-entropy Alloys
Shear Instabilities of BCC Refractory High Entropy Alloys
Small-scale Deformation Behavior of Multi-principal Element Alloys
Solidification Behavior and Mechanical Performance of Ductile Mn35Fe5Co20Ni20Cu20 MPEA Brazing Filler
Spinodal Decomposition in Multi-component Alloys
Strengthening in HEAs by Solute-solute Interactions and Short-range-order
Strengthening Mechanisms and Deformation Behaviors in Single BCC Phase Refractory High-entropy Alloys
Study of the Nitriding Behavior of an Austenitic High Entropy Alloy Powder
Synthesis and Characterization of Porous AlCoCrFeNi High-entropy-alloy
Synthesis and Properties of High Entropy Oxide Ceramics
Tailoring High Entropy Alloys for Advanced Technology Fuel (ATF) Coatings
Thermal and Irradiation-induced Grain Growth in Nanocrystalline High-entropy Alloys
Thermodynamics and Phase Transformations in Refractory Complex Concentrated Superalloys
Toward High Throughput Design and Development of Multi-principal Element Alloys for Corrosion and Oxidation Resistance (MPEAs)
Tunable Chemical Disorder in Concentrated Alloys: Defects and Radiation Performance
Ultrafast Multilayer Combustion Synthesis of B2 Single Phase AlCoCrFeNi High Entropy Alloy Films Using Reactive Al/Ni Multilayer as Heat Source
What Controls Corrosion and Passivation of Compositionally Complex Alloys?

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