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Meeting 1st World Congress on High Entropy Alloys (HEA 2019)
Symposium High Entropy Alloys 2019
Presentation Title Improving Ductility of Dual-phase High-entropy Alloys for High-temperature Structural Applications
Author(s) Young-Sang Na, Ka-Ram Lim, Hyun-Jun Kwon, Jong-Woo Won
On-Site Speaker (Planned) Young-Sang Na
Abstract Scope The untapped potential of high-entropy alloys (HEAs) has attracted considerable interest in recent years. HEAs are expected to offer a new route to form highly stable and simple solid solution structures (as compared to intermetallic compounds) in multicomponent alloys, and they also have considerable potential in the extreme conditions such as cryogenic temperatures, high temperatures and corrosive environments. Among many HEAs, AlCoCrFeNi alloy shows outstanding specific strength over the temperature range of 400 - 600˚C, since it has dual-phase structure (A2+B2) and high coherency between the two phases. However, its ductility is very poor even at high temperatures. To enhance ductility, we have controlled the volume fraction and the chemical composition of each phase by combining experimental and computational approaches. In the present study, mechanical properties of newly developed alloys have been examined from a microstructural point of view.
Proceedings Inclusion? Undecided


3D Ink-extrusion Additive Manufacturing of CoCrFeNi High-entropy Alloy Micro-lattices
A High-throughput Laser-processing Method to Study Processing-microstructure-mechanical Property Relationship in a High Entropy Alloy
A Low-cost, Low-density Compositionally Complex Alloy with High Corrosion Resistance
A Machine Learning Model for Alloy Design
A Novel Ceramic Derived Processing Route for Multi-principal Element Alloys
Additive Manufacturing of High Entropy and Compositionally Complex Alloys
Alloying Effects on Mechanical Properties of CoCrFeNi-based γ’-Strengthened Multi-principal Element Alloys for Elevated Temperature Applications
An In-situ TEM Observation on the Stability of High Entropy Alloys Under High Temperature Oxidation Environments
Anisotropic Lattice Excitation Induced by Hydrogen in CoCrFeMnNi High-entropy Alloy
Artificial Intelligence for Predicting Phase Stability on High Entropy Alloys
Assessing the Fidelity of Thermodynamic Predictions for CrFeCoNi-based High Entropy Alloys
Atomic-scale Investigation of Deformation Substructures of High Entropy Alloy CoCrFeMnNi Subjected to High Strain Rates
Buildind Novel Magnetic Materials Suitable for Permanent Magnets Based on “Artificial Elements” of Rare Earths and Transition Metals High Entropy Alloys
CALPHAD-based Informatics Tools for High-entropy Alloy Design
Combinatorial Thin Film Approach to Develop Refractory BCC HEAs with Improved Ductility
Competition Between L1 2 and B2/L21 Precipitation in FCC Based Complex Concentrated Alloys: Multi-scale Microstructures and Tuning Mechanical Properties
Compositional Design, Elongation and Dislocation Mobility in HEA Alloys
Corrosion of Single- and Multi-phase High Entropy Alloys
Creep Properties of High Entropy Alloys Having a Single FCC Crystal Structure at Elevated Temperature
Cryogenic-temperature Deformation of Boron-doped High-entropy Alloys: Hardening by Short-range Ordering
Crystal Plasticity in the Role of Performance Evaluation Tool in the Multiscale Design of High Entropy Alloys
Data Analytics and Machine Learning to Accelerate Materials Design and Processing Development of High Entropy Alloys
Deformation Mechanisms of Additively Manufactured FeMnCoCrAl High Entropy Alloy with Interstitial Carbon
Determination of High-throughput Computational Modeling Approaches on Design of Al-Cr-Co-Fe-Ni Quinary High-entropy Alloys (HEAs)
Development and Study of a TiNbMoAlSi Complex Concentrated Alloy with a Body-centered Cubic and Orthorhombic Microstructure
Development of a Thermodynamic and Mobility Database Using CALPHAD for High Entropy Alloys
Development of Sputtered HEA Thin Films and Their Functional Properties
Discovery and Optimization of High Entropy Alloys Using Combinatorial and High-throughput Methods
Effect of Co and Fe on the Phase Stability of CrMnFeCoNi High Entropy Alloys Following Long-duration Exposures at Intermediate Temperatures
Effect of Cr Variation on FCC Phase Fraction in AlCoCrxFeNi(x= 0 - 1) High-entropy Alloys Synthesised through Mechanical Alloying and Spark Plasma Sintering
Effect of Local Chemical Ordering on Mechanical Properties in High Entropy Alloys
Effect of Pre-strain on the Aging Response of Non-equimolar AlCoCrFeNiTi High Entropy Alloy
Effects of Cu Precipitation on Mechanical, Anti-corrosion and Antibacterial Properties in a Medium-entropy Super-austenitic Stainless Steel
Efficient Exploration of the High Entropy Alloy Space
Electrochemical Preparation of Different Classes of High-entropy Materials for Advanced Applications
Emerging Computational Tools for Exploring the Refractory Compositionally Complex Alloys
Enabling FAIR Data Principles for High-throughput Materials Science and Engineering
Engineering Atomic-level Complexity in High Entropy and Complex Concentrated Alloys
Enhanced Mechanical Properties in CrMnFeCoNi High Entropy Alloy by Harmonic Structure Design
Enthalpy-based Design of High Entropy Alloys
Environmental Degradation of Multiple Principle Element Alloys
Examining the Importance of the ‘Entropic Effect’ on the Mechanical Properties of HEAs
Expanding High-entropy to Ceramics: Identifying High Entropy Oxides with Perovskite, Spinel, or Pyrochlore Structure
Exploration of Compositionally Complex Al-Li-Mg-Zn Alloys, Including Discovery of a Four-component Icosahedral Quasicrystal
Exploration of the Solid–Solution Space in the Co–Cr–Fe–Ni System via Rapid Alloy Selection and Synthesis Methods
Fatigue Crack Growth Behavior of CrCoFeNi
Functional Properties of High Entropy Materials with Metallic, Ionic and Covalent Bonding
Grain Boundary Segregation Behavior of Mechanically-alloyed Refractory High Entropy Alloys
Heat Treatment and Property Optimization Study of Refractory Complex Concentrated Alloys
High-entropy Functional Materials
High-throughput Aging Investigation of High-entropy Alloys for Advanced Nuclear Applications
High-throughput Experimental Synthesis of Refractory High-entropy Alloys
High Energy Synchrotron Radiation X-ray Diffraction Measurements on Al0.3CoCrFeNi High Entropy Alloy during in situ Annealing
High Entropy Alloy Design Using Multiscale Modeling and Machine Learning Based High-throughput Computing
High Entropy Alloys Based on NiCoFeAlxTiy Hardening with Multicomponent Intermetallic Nanoparticles
High Entropy Ceramics as an Emerging Class of Material: Insights from Theory and Computation
High Speed Nanoindentation Property Mapping in Dual Phase AlxFeCrNiMn at Elevated Temperatures
High Temperature Oxidation Behavior of CrMnFeCoNi and CrCoNi in Various Atmospheres
High Temperature Oxidation of High Entropy Nb-Cr-W-Ta-V Alloy
High Temperature Strengthening from High Entropy Precipitates
High Temperature, Low Cost and Light Weight High Entropy Superalloys
Hydrogen Storage Properties of TiVNbCrx Multicomponent Alloys
ICME Design of Corrosion Resistant HEAs for Harsh Environments
Improving Ductility of Dual-phase High-entropy Alloys for High-temperature Structural Applications
Insights into Refractory Multi-principal Component Alloys from Machine-learning Interatomic Potentials
Integrated Computational Materials Engineering (ICME) Design of High Performance Copmlex Concentrated Alloys
Investigating the Mechanical Response of Refractory High-entropy Alloys Using Ion Irradiation and Micromechanical Testing
Investigation on Elastic and Plastic Deformation Behaviors of Refractory High-entropy Alloy at Elevated Temperatures via In-situ Neutron Studies
It Is Not (Only) the Entropy!
Lattice Distortion of High-entropy Alloys
Local Chemical Ordering and the Mechanical Properties of CrCoNi-based High-entropy Alloys
Local Plasticity and Interfacial Effects in Cubic HEA Studied by Correlative Methods
Machine-learning Phase Prediction of High-entropy Alloys
Machine Learning-aided Accelerated Discovery of HEA for Turbomachinery Applications
Material Design and Process Development for Lightweight High Entropy Alloys and Composites
Mechanical Properties and Joining of Additively Manufactured Ti-Nb-Zr-Ta Alloy Parts with HEA Fillers
Mechanical Properties of Single-phase Refractory High Entropy Alloys
Metastable F.C.C. Phase and Its Influence on the Soft-magnetic Properties of FeCoNiAlxSix (0.2 < x < 0.5) Alloys
Metastable High Entropy Alloys
Microstructural and Mechanical Characterization of a Medium Entropy Alloy Produced Using Selective Laser Melting
Microstructural Characterization and High-temperature Mechanical Behavior of 3D Printed Eutectic High Entropy Alloy (AlCoCrFeNi2.1)
Microstructural Evolution of Refractory Metal Additions to the CrFeCoNi High Entropy Alloys
Microstructure and Mechanical Properties of High Entropy Ceramic/High Entropy Alloys Composite High Entropy Material
Microstructure Evolution in CoCrFeMnNi High-entropy Alloy by Localized Shear Deformation
Microstructures and Properties of As-Cast Al2.7CrFeMnV, Al2.7CrFeTiV, and Al2.7CrMnTiV High Entropy Alloys
Modeling and Experimental Validation of Refractory CCA Solidification and Homogenization
Molecular Dynamic Simulations on the Mechanical Properties of CoCrFeMnNi High Entropy Alloy and the Equimolar Alloys in Its Sub-system
Multi-cell Monte Carlo for Phase Prediction of High Entropy Alloys
Multi-scale Framework for Predicting Mechanical Properties in High Entropy Alloys
Nanomechanical Behavior of Body-centered Cubic VNbTaMoW Alloy
NiTi Based High Entropy Shape Memory Alloys
Novel Equiatomic and Non-equiatomic Refractory High Entropy Alloys Exhibiting Tensile Ductility Even in As-cast State
On the Deformation Mechanisms of a B2 Refractory Complex Concentrated Alloy
On the Mechanism of TRIP Behavior in Co-Cr-Ni Multi-principal Element Alloy
Optimization of MPEA Properties with Sequential Learning
Orientation and Interstitial Content Dependence of Twinning in Medium and High-entropy Alloys in Comparison with Conventional Steel Single Crystals
Origins of High Temperature Strengthening in BCC HEAs
Outstanding Radiation Resistance of Tungsten-based High Entropy Alloys
Oxidation of CrFeCoNiCu Sputtered Thin Films
Oxidation Resistant Refractory High Entropy Alloys for High Temperature Structural Application
Oxidation Resistant Refractory Metal – Simple Metal Complex Concentrated Alloys
P10: FCC to L12 Ordering Transformation in Equimolar FeCoNiV High Entropy Alloy
P11: Fracture and Fatigue Resistance of High Entropy Alloys
P12: Hydrogen Sorption in MgTiNbCr0.5Mn0.5Ni0.5 High Entropy Alloy Synthesized Using High Energy Ball Milling (HEBM)
P13: Investigation of CoCrCuFeNi Alloys in the Semisolid State
P14: Is the Cantor Alloy (CrMnFeCoNi) the Most Stable Combination within CrMnFeCoNiCu?
P15: Kinetic Monte Carlo Study of a Vacancy Diffusion Driven Ordering in High-entropy Alloys
P17: Microstructural Evolution of TRIPLEX Structure in TiVNbTaW High Entropy Alloy Fabricated by Spark Plasma Sintering
P18: Microstructure and Superconductivity in Equiatomic Hf-Nb-Ta-Ti-V High Entropy Alloy
P19: Microstructure Evolutions of AlCoCrFeNiTi0.5 High-entropy Alloy at Elevated Temperatures
P1: A Design Strategy for Developing Lightweight TWIP High Entropy Alloy
P20: Nanocrystalline, Two Phase High-entropy Alloy: Strengthening by Grain Boundaris Versus Second-phase Particle
P21: Overcoming Mechanostability and Thermal Shielding Trade off via Concatenated Dendritic High Entropy Alloy Foam
P22: Partial Melting and Microstructural Evaluation of CrCuFeMnNi High-entropy Alloys for Semisolid Processing
P23: Physical Properties of Sputtered CrFeCoNiCu Thin Films on Quartz Substrate
P24: Radiation-induced Damage of CrMnFeNi-based High-entropy Alloys
P25: Sintering of HfNbTaTiZr Alloy
P26: Strain Hardening Behavior of Equi-atomic CoCrFeMnNi High-entropy Alloy at Low and Room Temperature
P27: Study of Lattice Distortion Effect on the Mechanical Property of BCC Alloy: From Low-entropy to High-entropy Alloys
P28: Synthesis and Characterization of TixAlSixMoW Light-weight High Entropy Alloys: Mechanical and Electrochemical Studies
P29: Synthesis of Equiatomic CoCrFeMnTi and CoCrFeMnNiTi Based High Entropy Alloys by Powder Metallurgy Route
P2: Cold Working of Al0.3CoCrFeNi High Entropy Alloy
P30: The Hardness of Al-Cr-Si-Ti Nitride Coatings
P31: Correlated In-situ Study of Surface Oxidation of High Entropy Alloys
P33: Density Functional Theory Lattice Distortion Calculations of High Entropy Metallic and Oxide Alloys
P34: Toughness Enhancing Deformation Mechanisms in the CoCrNi Family of MPEAs
P35: High-cycle Fatigue Properties of Nitrogen-doped CoCrNi Medium Entropy Alloy
P36: Microstructural Evolution of CoCrFeMnNi under Tribological Load with Varying Stress Field
P37: Dislocation Multiplication from a Frank-Read Source in Body-centered Cubic Pure Metals and Multi-principal Element Alloys
P38: Leveraging Specifications within Materials Science and Engineering
P39: Atomistic Calculations of the Peierls Stress in NbTiZr Multi-principal Element Alloys
P40: Use Case for the High-throughput Experimental Materials Collaboratory: High Entropy Alloys
P4: Development of High Entropy Alloy with Nano-laminated Martensite/Austenite Structure
P5: Dislocation Emission from Grain Boundaries in High Entropy Alloys Through Atomic Simulations
P6: Dissimilar Infrared Brazing of CoCrFeMnNi Equiatomic High Entropy Alloy and 316 Stainless Steel Using Nickel-based Braze Alloys
P8: Establishing Processing-microstructure-property Paradigm in Complex Concentrated CoCuFeMnNi High Entropy Alloy
P9: Evolution of Precipitation Hardening in Al0.2CoCrFeNi High Entropy Alloy Studied by Synchrotron Small-angle X-ray Scattering
Phase Instabilities and Mechanical Properties of High-entropy Alloys (HEAs)
Phase Inversion in Refractory High Entropy Alloys
Potential Chemical Selection Guideline for High-entropy Ceramics
Precipitation and Strengthening in AlCoCrFeNi High Entropy Alloys as Studied by Atom Probe Tomography
Precipitation Behaviour and Mechanical Properties of Complex Concentrated Alloy in the AlMoTaTi System
Predicting Phase and Mechanical Properties of Refractory HEAs Using Machine Learning
Rapid Alloy Development of New Promising High Entropy Alloys by Using Laser Powder Bed Fusion (3D-Printing)
Rapid Mechanical Screening of High Entropy Alloys: Application of Spherical Punch Testing (SPT) and Spherical Indentation on Ti-V-Cr-Nb-Mo HEAs
Refractory Complex Concentrated Alloys for High Temperature Applications: Opportunities and Challenges
Role of Oxidation on the Thermal Expansion of Refractory MoWTaTiZr High Entropy Alloy
Screening of Multi-principal Element and High-entropy Alloys by Materials Informatics
Searching of High Entropy Alloys Aided by High Throughput Calculation
Selective Oxidation in a High Entropy Carbide Ultra-high Temperature Ceramic (UHTC)
Shape Memory Effect in the CrMnFeCoNi Alloy System
Single-crystal Mechanical Properties of Equiatomic CrMnFeCoNi High-entropy Alloy and Its Derivative Equiatomic Quaternary and Ternary Medium-entropy Alloys
Slip Systems and Dislocation Mobility in Refractory Multi-principal Element Alloys
Study of Cavitation Erosion Behavior of AlCoCrxFeCu High-entropy Alloy Coatings Synthesized by Laser Cladding
Study of Deformation Characteristics CoCrFeMnNi and Associated Alloys at Very Low Temperatures
Study of Oxidation Mechanisms in Refractory MoWTaTiZr HEA using Periodic DFT and Atomistic Thermodynamic Modelling
Superhard Nanostructured Thin Films Based on Refractory Type HEA Nitrides
Superior Tensile Properties of 1%C-CoCrFeMnNi High-entropy Alloy Additively Manufactured by Selective Laser Melting
Synthesis and Mechanical Characterisation of a Single-phase bcc High-entropy Alloy
Synthesis and Phase Stability of High-entropy Nitrides and Carbonitrides
Synthesizing Refractory High Entropy Alloys (HEAs) of 3rd Generation by Selective Electron Beam Melting (SEBM) Using Elemental Powders Blend
Tailoring Microstructure of Refractory High Entropy Superalloy through a Bulk Combinatorial Approach
The Assessment of Local Lattice Strains in Alloys Using Total Scattering
The Design of Reduced Activation Damage Resistant High-entropy Alloys for Next-generation Nuclear Systems
The Origins of Excellent Passivity in Single Phase High Entropy Alloys
The Paracrystalline Nature of Lattice Distortion in High Entropy Alloys
The Role of Twinning and HCP Phase Transformation in the Deformation of Single Crystalline High -and Medium Entropy Alloys
Ti-Zr-Nb-Cu-Ni and Co-Cr-Ni-Si-Mo/Nb High-entropy Alloys as Brazing Filler Metals
Towards the Industrial Application of the AlCoCrFeNi HEA System
Towards V-based High Entropy Alloys for Fusion Blanket Applications
Tuning the Mechanical Property of an L12-strengthened High-entropy Alloy through Microstructure Engineering
Ultrastrong High-entropy Alloy Micro-fiber Strengthened by High Density Dislocations
Understanding the Microstructure of Refractory Metal High Entropy Superalloys
Using Machine Learning to Guide Multiple Principle Element Alloy Design
Vaporizing Foil Actuator Welding of Equimolar CrCoNi—weld Zone Structure and Joint Strength Characterization
Weak-beam Dark-field STEM Study of Dislocation Microstructure in NiCoCr Medium Entropy Alloy
Weldability of High Entropy Alloys (HEA): High-throughput Exploration for Structural Alloy Design
In vitro Biocompatibility of Novel High Entropy Alloys for Biomedical Applications
ζ-factor Quantitative Chemical Microanalysis of Multi-phase Complex Concentrated Alloys

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