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Meeting 2018 TMS Annual Meeting & Exhibition
Symposium High Entropy Alloys VI
Presentation Title Phase Formation and Stability in High Entropy Alloys
Author(s) Nicholas Derimow, Trevor Clark, Reza Abbaschian, Suveen Mathaudhu
On-Site Speaker (Planned) Suveen Mathaudhu
Abstract Scope With the emergence of high entropy alloys, the materials community has been striving to understand the formation mechanisms and potentially increased mechanical properties of these complex alloy systems. A parallel study of bottom-up powder and top-down solidification processing of select 3-d transition metal HEAs was carried out to investigate phase formation and mechanical properties. The bottom-up approach involved mechanically alloying elemental powders and subsequent densification via spark plasma sintering. The top-down method was arc melting. These methods allow for comparison between metastable and equilibrium phase development, and may offer insight into phase formation mechanics. Crystal structures and compositions resulting from the two processing approaches were studied and mechanical characterization was performed to help understand the complex behavior of HEAs and their tendency for stable phase formation.
Proceedings Inclusion? Planned: Supplemental Proceedings volume

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

A Comprehensive Analysis and Modeling of the Serration Behavior in High Entropy Alloys and Other Material Systems
A High-throughput Approach to Accelerate the Evaluation of Multicomponent Alloys
A New Centimeter–diameter LaCePrCoAl High Entropy Bulk Metallic Glass
Abstract Title: Advanced Scanning Electron Microscopy Characterization of the Microstructure of High Entropy Alloys
Assessing High-entropy Alloys for High Temperature Structural Application Possibilities
Atomistic Monte Carlo Modeling of the Microstructures of High Entropy Alloys
Atomistic Simulations of Dislocation Behavior in BCC and FCC Multicomponent Solid Solution Alloys
Beneficial Effect of Non-equiatomic Compositions for Long-term Stability at 500C of CoCrFeMnNi Family of HEA
Brazing of Ni-base Superalloy 600 Using a Newly Developed Mn35Fe5 (CoNiCu)20 Filler Foil
Breakthrough Applications of High-entropy Materials
Calphad and New-phacomp Assisted Design of Single Phase CrMnFeCoNi-type High Entropy Alloys
Carbon and Nitrogen Co-doping in an Equiatomic High-entropy Alloy
Chemical Short-range Orders and the Induced Structural Transition in High Entropy Alloys
Combinatorial Assessment of FeMnCoCrAl High Entropy Alloy
Combinatorial Exploration of High Entropy Alloys
Complex Multicomponent Alloys: From High-throughput Calculations to Microstructure Effects in High Entropy Alloys
Compositional Effects on Thermal and Electrical Transport Properties in Ni-containing Single-phase Concentrated Solid Solution Alloys
Computational Investigations of Mechanical Behavior of AlxCrCoFeNi High-entropy Alloy
Configuration Entropy of High Entropy Alloys
Continued and Expanded Studies on Fusion Welds in High Entropy Alloys
Core Structure of <111> Screw Dislocations in Refractory BCC High Entropy Alloys
Corrosion, Erosion, and Wear Behavior of High Entropy Alloys
Creep Behavior of Single Phase FCC Medium and High Entropy Alloys
Deformation Behavior of the Modified and FCC Structured CoCrFeMnNi Alloys
Deformation Mechanism of Transformation-induced Plasticity-assisted, Dual-phase High-entropy Alloy (TRIP-DP-HEA) by In-situ Neutron Diffraction
Derivation of Non-equiatomic MnFeCoNiCu High Entropy Alloy and its Relation to the Equiatomic Counterpart
Designing Ti-Zr-Ta-Mo-W Refractory High-entropy Alloy
Developing Light-weight High-entropy Alloys: Modeling and Experiments
Development of High Temperature Alloys Based on the HEA Design Concept
Development of Oxidation Resistant Refractory High Entropy Alloys for High Temperature Applications: Recent Results and Development Strategy
Development of Refractory High Entropy Alloys Fabricated by Powder Metallurgy Process
Diffusion Characteristics of AlxCoCrFeNi High Entropy Alloys
Diffusion in CoCrFeNi Based High Entropy Alloys
Effect of Cellular Structure on Mechanical Property in None-equal Molar AlCoCrFeNiTi High Entropy Alloy
Effect of Extreme Chemical Disordering on Vacancies in a High Entropy Alloy
Effect of Extreme Disorder on the Lattice Dynamics and Phonon Scattering in Concentrated Solid Solution Alloys
Effect of NbC on Microstructure and Mechanical Properties of Selected HEA Alloys from CoCrFeMnNi Family
Effect of NiAl Precipitates on Grain Refinement in AlxCoCrFeNi High Entropy Alloys
Effect of Ti Addition on Microstructure and Properties of CoCrFeMnNi High Entropy Alloys
Effects of Chemical Disorder on Radiation Response in Medium– and High–entropy Alloys
Effects of Solidification Conditions on Microstructure and Properties of the CoCrFeMnNi Family of HEAs
Elastic Stability and Lattice Distortion of Refractory High Entropy Alloys
Elevated-temperature Tensile and Creep Behavior of Equiatomic Ni-Cr-Co
Enhancing the Predictive Capabilities of Ab Initio Methods Towards the Search for Novel Multi-component Alloys
Evaluation of Friction and Wear Behavior of a Single-phase Equiatomic TiZrHfNb High-entropy Alloy Using Nanoscratch Technique
Evaluation of Microstructure and Mechanical Property Variations in AlxCrCoFeNi High Entropy Alloys by a High-throughput Laser Deposition Method
Evolution of Microstructure, Texture and Strength during Severe Plastic Deformation of CrMnFeCoNi High-entropy Alloy
Evolution of the Solid Solution Strengthening in FCC Multi-component Alloys: Towards High Entropy Alloys Design
Experimental and Computational Studies of Microstructures and Mechanical Behavior of AlxCoCrFeNi High-entropy Alloys (HEAs)
First-principles Calculations of Stacking Fault Energies in Quinary High-entropy Alloy Systems
First-principles Phonon Approach to High Entropy Alloys
First-principles Prediction of High-entropy-alloy Stability
Flow Stress and Activation Volume of FCC Metals and Low to Medium Entropy Alloys
Fracture Behavior of Nanocrystalline BCC High-entropy Alloys
G-33: Ab Initio Assisted Design of Quinary Dual-phase High-entropy Alloys with Transformation-induced Plasticity
G-34: Ab Initio Calculations of the Structure and Elastic Properties of Low Density High Entropy Alloys
G-35: Contribution of Lattice Distortion to Solid Solution Strengthening in a Group of Body-centered Cubic (bcc) High Entropy Alloys
G-36: Development of HEA Foam with Ultra-low TC and High Strength
G-37: Development of High Entropy Alloy Coating Layer Using DC Magnetron Sputtering
G-38: Development of NbMoTaW Refractory High Entropy Alloys Matrix Composites Containing Nano-scale Oxides
G-39: Development of Transition Metal High-entropy Silicides
G-40: Effect of TiB2 Addition on Tribological Properties of (AlCrFeMnV)100-xBix(x = 5 and 10) High Entropy Alloys
G-41: Effects of Additional Elements on the Microstructure and Mechanical Properties of High Entropy Alloys Based on TiZrHfNiCu System
G-42: First-principles Calculations of Stacking Fault Energies in Refractory BCC High-entropy Alloy Systems
G-43: High Thermal Stability and Sluggish Crystallization Kinetics of High-entropy Bulk Metallic Glasses
G-44: Martensite Reinforced High Entropy Titanium Alloy with Multiple Deformation Mechanisms
G-45: Measurement and Optimization of FeCoNiCrCu0.5 High Entropy Alloys-to-AISI 304L Stainless Steel Parameters of Dissimilar Resistance Spot Welds for Affecting Microstructural and Properties Using Hybrid Abductor Induction Mechanism
G-46: Microstructure and Magnetic Properties of FeNiCuMnTiSnx High Entropy Alloys
G-47: Microstructure Evolution, Phase Stability, and Hardness Variation of the A High Entropy Alloy
G-48: Microstructure of a New Ti-containing High Entropy Alloy
G-49: On the Evolution of Texture and Microstructure during Rolling of Dual Phase Al16Co21Cr21Fe21Ni21 High Entropy Alloy
G-50: SIM Transformation and Superelasticity of TiZrHfAlNb High Entropy Alloys
G-51: Synthesis of FeCrVNbMn High Entropy Alloy by Mechanical Alloying and Study of their Microstructure and Mechanical Properties
G-52: Thermal and Structural Characterization of Magnetic High Entropy Alloys for Magnetocaloric Applications
G-53: Understanding the Deformation Behavior of CoCuFeMnNi High Entropy Alloy by Investigating Mechanical Properties of Binary, Ternary and Quaternary Alloy Subsets
High-throughput Predictive Design of Refractory High-entropy Alloys: Application to Ti-Zr-Ta-Mo-W with Validation
High-throughput Screening of High Entropy Alloys Using a Computational Thermodynamic Approach
High Entropy Alloys, High throughput Experiments and High Temperature Materials
Hydrogen Resistance of C-doped and Undoped CoCrFeMnNi High-entropy Alloys
ICME Design of High Entropy Alloys
In-situ Synchrotron X-ray Diffraction Characterization of High Entropy Alloys for Hydrogen Storage Applications
In Situ Ion Irradiation on Al-Co-Cr-Fe-Ni High Entropy Alloys
Influence of Crystal Defects upon Phase Stability of High Entropy Alloys
Insight into High-temperature Oxidation of Refractory High-entropy Alloys and Mechanical Properties
Intermetallic Compound Enhances Twinning and Strength in a Duplex High Entropy Alloy
Investigating Microstructures in the Al-Co-Cr-Fe-Ni Alloys Using Bragg-edge Neutron Imaging Techniques
Investigation of Dynamic Mechanical Response in Al0.3CoCrFeNi High Entropy Alloy
Investigation of High Entropy Alloys (HEAs) and the Application in Dissimilar Metals Welding
Investigation of Phase Behavior in Al-Cr-Co-Ni-Ti Multi-principal Element Alloys Using the CALPHAD Approach with Key Experiments
Investigation of Plastic Deformation Modes in Al0.1CoCrFeNi High Entropy Alloy
Life at the Edge: Nudging High-entropy Alloy Systems along Different Pathways
Loss of Crystallographic Anisotropy and Deformation Heterogeneity in FCC and BCC High-entropy Alloys
Manipulation of Deformation Mechanism in FCC HEA by Al Addition
Measurement of Equilibrium Concentrations of Vacancies in High-entropy Alloy Co-Cr-Ni by In-situ Neutron Diffraction
Mechanical and Corrosion Properties of CoCrFeNiTi-based High-entropy Alloy Additive Manufactured Using Selective Laser Beam Melting
Mechanical Behavior and Thermal Stability of a Dual-phase Complex High Entropy Alloy
Mechanical Properties and Deformation Twinning Behavior of As-cast CoCrFeMnNi High-entropy Alloy at Low and High Temperatures
Mechanical Properties and Oxidation Resistance of NbTiZr-contaning Refractory High Entropy Alloys with Varying Al, Cr and Mo Content
Mechanical Properties and Strengthening Mechanisms of Concentrated Solid Solution and High Entropy Alloys
Mechanisms of Damage Tolerance of CrCoNi-based High-entropy Alloys
Melts of High-entropy Alloys: Atomic Diffusion and Electronic/Atomic Structure from Ab Initio Simulation
Microstructural Evolution and Mechanical Behavior of NbTaTiV Refractory High-entropy Alloy at Elevated Temperatures
Microstructural Evolution and Resulting Mechanical Behavior in Nanocrystalline CoCrCuFeNi High-entropy Alloys after Heat Treatments
Microstructure and Mechanical Properties of a Nanostructured High Entropy Alloy Processed via Severe Plastic Deformation
Microstructure and Mechanical Properties of FeCoNiCr High-entropy Alloy Strengthened by Nano-Y2O3 Dispersion
Microstructure and Mechanical Properties of Refractory HfMo0.5NbTiV0.5Six High-entropy Composites
Microstructure and Properties of New Refractory High Entropy Superalloys
Microstructures and Properties of As-Cast AlCrFeMnV, AlCrFeTiV, and AlCrMnTiV High Entropy Alloys
Multi-functional Optimization for Tailoring Properties in Multi-component Alloys
On the Damage Tolerance of TRIP, TWIP and Dual-phase High-entropy Alloys
On the Temperature Dependence of Fatigue-crack Propagation in the CrMnFeCoNi High-entropy Alloy
Optimization of Strength and Ductility in Mo-Ta-Nb-V-Ti BCC High Entropy Alloys
Orientation Dependence of the Mechanical Response and Microstructural Evolution of NiCoCr Single Crystal Medium Entropy Alloys
Oxidation Behavior of High Entropy Materials
Percolation Effects in Atomic Transport due to Vacancy Diffusion in Random Binary Alloys
Phase-stability and Short-range Ordering Behavior of FeMnCoCrAlx High-entropy Alloy: Theory and Experiment
Phase Formation and Stability in High Entropy Alloys
Phase Stability and Microstructural Optimization in Al0.5NbTa0.8Ti1.5V0.2Zr High Entropy Alloy
Phase Stability and Transformation in a Light-weight High-entropy Alloy
Phase Stability in the Al-Co-Cr-Fe-Nb-Ni High-entropy Alloy System
Phase Stabilization of High Entropy Alloy under Dynamic Forcing Condition
Phonon Broadening in High Entropy Alloys
Plastic Behavior of a CoCrFeMnNi Alloy under Monotonic-tension and Low-cycle-fatigue Loading
Polymorphism in a High-entropy Alloy
Predictive Modeling of the Elastic Properties of Refractory High Entropy Alloys
Probing Local Lattice Distortion in High-entropy Alloys
Processing and Characterization of High Entropy Alloys for Extreme Environments
Processing, Microstructure and Mechanical Characterization of MgAlLiZnCaCu High Entropy Alloy
Processing, Structure and Tensile Behavior of a Nano-lamellar Eutectic AlCoCrFeNi2.1 High Entropy Alloy
Radiation Effects in High Entropy Alloys Revealed by Atom Probe Tomography
Rare-earth High-entropy Alloys with Giant Magnetocaloric Effect
Real-time Mapping of Local Dissolution Processes in AlxCoCrFeNi High-entropy Alloys
Relating Elementary Deformation Mechanisms to Macroscopic Mechanical Properties in High- and Medium-entropy Alloys
Resistance Spot Welding of Dissimilar FeCoNiCrCu0.5 High Entropy Alloys-to-AISI 304L Stainless Steel: Microstructural Evolution and Metallurgy Mode Analysis
Role of Copper in Nucleation and Stabilization of Ordered L12 Precipitates in HEAs
Screening of Structure and Properties of FCC Thin Film HEAs Using Compositional Gradient Samples
Separation of Static and Dynamic Displacements in CrMnFeCoNi
Serrated Flow and Creep Behavior under Nanoindentation Experiments in an Al0.5CoCrCuFeNi HEA High-entropy Alloy
Short-range Order in Multicomponent Solid-solution Alloys
Single-crystal Mechanical Properties of the Equiatomic CrMnFeCoNi High-entropy Alloy with the FCC Structure
Size Effects in High-entropy Alloys and Quasicrystals
Sluggish Phase Transition in CoCrFeMnNi High Entropy Alloy: Collective Structural Modulation
Solid Solution Softening of an Equiatomic Ternary Refractory Alloy by Additional Alloying with a Fourth Element
Solidification and Miscibility of 3d Transition Metal High Entropy Alloys Containing Copper
Solution Strengthening in FCC High Entropy Alloys
Strain Rate Dependent Deformation Mechanism of CoCrFeMnNi High-entropy Alloy
Strategies for Design, Modelling and Optimisation of High Entropy Alloys
Strengthening of an High Entropy Alloys Using Nanotwinned Grains
Structures, Thermodynamics and Elasticity of High-entropy Alloys
Structures, Thermodynamics, and Kinetics of Liquid High-entropy Alloys
The Melting of Ultra-high Temperature Refractory High Entropy Alloys: An Ab Initio Molecular Dynamics Study
The Role of Short-range Order on the Dislocation Behavior in BCC and FCC Multicomponent Solid Solution Alloys Using Atomistic Simulations
Thermal Stability and Coarsening of Coherent Particles in a Precipitation-hardened (NiCoFeCr)94Ti2Al4 High-entropy Alloy
True Thermodynamic Equilibrium in High Entropy Alloys: Al0.3CoCrFeNi as a Case Study
Twin and Dislocation Evolution for Interrupted Compression Experiments of Alx(CrCoFeNi)1-x High Entropy Alloys (HEAs)
Unusual Interstitial Strengthening of High-entropy Alloys Evading the Strength-ductility Trade-off
Validation of High Entropy Alloy Diffusion Databases
Work Hardening Behavior and Strain Localization in Single Crystalline High Entropy Alloys

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