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Meeting 2nd World Congress on High Entropy Alloys (HEA 2021)
Symposium 2nd World Congress on High Entropy Alloys (HEA 2021)
Presentation Title Design of Low Cost Compositionally Complex Alloys (CCAs) with Excellent Corrosion Resistance
Author(s) Samuel B. Inman, Jie Qi, Mark Wischhusen, Carol Glover, Junsoo Han, Sean Agnew, Joseph Poon, John R Scully
On-Site Speaker (Planned) Samuel B. Inman
Abstract Scope This project seeks to design lightweight, low cost, compositionally complex alloys with combinations of strength, ductility, and corrosion resistance in marine environments. Corrosion resistance depends on balancing phase composition to enable natural passivation and minimize solute depletion near phase interfaces. High throughput, machine learning-based methods were used to select alloying elements favorable for synthesis based on cost, density, passivation ability, and phase stability. Alloys were synthesized, characterized, and experimentally examined for nanostructure, phase stability, and mechanical properties. Selected alloys were experimentally verified to have an FCC matrix and B2 secondary phase regions with XRD. Potentiodynamic polarization experiments were performed in dilute NaCl solutions of varying concentrations and pH. Passive film compositions were investigated with ex-situ XPS. Corrosion resistance surpassing stainless steel may be attributable to Al, Cr, and Ti enriched oxide formation. Single-element composition adjustments suggested trade-offs between improving corrosion resistance and promoting microstructural stability, establishing foundations for compositional optimization.
Proceedings Inclusion? Undecided

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

. . . So You Want to Make a Refractory Alloy? A Primer on R-MPEA Processing Challenges
A High-throughput Strategy to Study Phase Stability and Mechanical Properties in Complex Concentrated Alloys
A Low-density Non-equiatomic AlSiCrMnFeNiCu High Entropy Alloy Strengthened with In-situ Precipitation of Cr5Si3
A Materials Informatics Approach to High Entropy Alloy Design
Ab Initio Study of the Phase Stability and Transition-induced Plasticity of Body-centered Cubic Refractory High-entropy Alloys
Accelerated Development of Refractory Multi-principal Element Alloys via Machine Learning
Advanced Characterization of High-temperature Oxide Evolution in NbTiZr
Applying Physical Metallurgy Principles to Multi-principal Element Alloys
Atomic Simulations of FeCoCrMnSi High Entropy Alloys
Atomistic Simulations of Deformation Response in High Entropy Alloys
Atomistic Simulations of the Local Slip Resistances in Four Refractory Multi-principal Element Alloys
Boron Addition in a Non-equiatomic Fe50Mn30Co10Cr10 Alloy Manufactured by Laser Cladding: Microstructure and Wear Abrasive Resistance
Building Data-driven Models with Noisy Input Features- Application: Strength Prediction of High Entropy Alloys
CALPHAD Database Development and Optimization of Refractory-HEAs
Characteristics of Slip Localization in the HfNbTaTiZr Refractory High Entropy Alloy
Cluster Expansion Approach to Sigma Phase Site Occupancy and Stability in Compositionally Complex Stainless Steel Alloys
Cold Spray of Medium and High Entropy VCoNi, CrCoNi and CrCoFeMnNi Coatings: Effects of Topical Oxides
Combinatorial Thin Film Screening of Non-equiatomic Refractory High Entropy Alloy
Computational Design of a Lightweight and Ductile Refractory Alloy
Computational Framework for Discovering High Entropy Alloy with Improved Properties
Computing Thermodynamic Properties for Reduced Activation High Entropy Alloys
Cores of 1/2<110>-type Dislocations in the CrMnFeCoNi High-entropy Alloy Investigated by STEM, the Center of Symmetry and the Nye Tensor Mapping Techniques
Corrosion and Passivation of Multi-principal Element Alloys in Aqueous Solutions
Cross-kinks Control Screw Dislocation Strength in Equiatomic bcc Refractory Alloys
Data-driven Design of Refractory High-entropy Alloys
Defining Pathways for Realizing the Revolutionary Potential of High Entropy Alloys: A Science & Technology Accelerator Study
Deformable Plastic Strain-induced Epsilon-martensite in Medium-entropy Alloys: A Pathway towards Multi-stage Metastability Engineering
Demonstration of Latin Hyper Cube as a Tool for the Design of Experiment of Laser Additive Manufacturing for MPEAs
Dense, Fine-grained Refractory Metal Alloys via a Low-temperature, Chemical-reaction-based Powder Metallurgical Process
Design of HEAs for Additive Manufacturing Using High-throughput Methods
Design of Low Cost Compositionally Complex Alloys (CCAs) with Excellent Corrosion Resistance
Design of Silicide Strengthening Refractory High-entropy Alloys
Designing High-entropy Intermetallic Alloys: Refractory B2 Phases
Determination of Transformation Pathways and Microstructural Evolution in Multi-principal Element Alloys using Coupled Materials Characterization and Phase Field Modeling
Development of Powder Metallurgy High-entropy Alloys by Using Superalloys Commercial Commodity Powders
Dislocation Pathways in Refractory Multi-principal Element Alloys
Disorder-driven Biasing of Deformation Tendencies in Concentrated FCC Solid Solutions
Dissimilar Laser Welding of High Entropy Alloys
Early Investigation of Hybrid Approaches to Joint Optimization for Accelerating the Design of Refractory High Entropy Alloys
Effect of Cooling Rate on the Crystallization Temperatures and Lattice Distortion of AlCoCrFeNi MPEA
Effect of Dose Rate on the Irradiation Responses of CrFeNi-based Multi-principal Element Alloys (MPEAs)
Effect of Grain Refinement on the Mechanical Behavior of the Cr40Co40Ni20 Medium-entropy Alloy
Effect of Grain Size on the Low-cycle Fatigue Behavior of CoCrNiFeMn High Entropy Alloy
Effect of Short-range Ordering on the Plastic Deformation of NiCoCr Medium Entropy Alloy
Electron Diffraction-based Analysis of the Role of Chemical Short-range Order on the Dynamic Deformation Response of FCC and BCC Multi-principal Element Alloys
Elevated-temperature Creep Properties and Deformation Mechanisms in a CrMnFeCoNi High-entropy Alloy
Entropy-driven Melting Point Depression in HEAs
Exploring Phase Equilibria, Strength and Deformation Mechanisms of Non-equiatomic CrCoNi Compositions
Fabrication and Characterization of Nanoporous Multi Principal Element Alloy Thin Films by Vacuum Thermal Dealloying
Feature Selection and Interpretation for Machine Learning Models: Reducing the Dimensionality of Complex Concentrated Alloys
First-principles Investigation into Ductility of High Entropy B2-like Alloys
Guidelines for Beneficial Short-range Ordering: Composition-dependent Plasticity Effects
High-pressure Induced Phase Transitions of a Metastable Complex Concentrated Alloy System with Varying Stacking Fault Energies
High-throughput and Machine Learning Accelerated Discovery of Corrosion-resistant Alloy for Molten Salt Applications
High-throughput Approach for Exploration of FCC High Entropy Alloys Based on Deformation Pathways
High-throughput Calculations and Experimentation for the Discovery of Refractory Complex Concentrated Alloys
High-throughput Characterization and Testing of MoNbTaW Multi-principal Element Alloy for Combinatorial Analysis
High-throughput First-principles Design and Screening of Additively Manufactured Corrosion-resistant HEA
High-throughput Oxidation of Additively Manufactured Refractory High Entropy Alloys
High-throughput, High-temperature Heavy Ion Irradiation of Annealed CrFeMnNi Magnetron-sputtered Combinatorial Thin Film
High Throughput Design and Testing of Multi-principal Element Alloys (MPEAs) for Corrosion and Oxidation Resistance: Successes and Pitfalls
High Throughput Study of Hardening and Void Swelling in Ion Irradiated High Entropy Alloys
Investigating Oxidation of NiAl+ Hf Using Cellular Automata
Investigation of the Initial Stages of Oxidation in MoNbTaW and Comparison to Pure W
Local and Near-boundary Environments in Multiple-principal Element Alloys
Low Cycle Fatigue Behavior of the Equiatomic CrMnFeCoNi High Entropy Alloy
Machine Learning-assisted Phase Prediction for High Entropy Alloys and Feature Analysis
Machine Learning Assisted Ab Initio Thermodynamics: From BCC unaries to HEAs
Machine Learning Based Intelligent Framework for Discovering High Entropy Alloy
Machine Learning Derived Periodic Table for High Entropy Alloys
Materials Systems Consideration in Design of High Entropy Alloys
Mechanism and Prediction of Hydrogen Embrittlement in fcc Stainless Steels and High Entropy Alloys
Melting Temperature Prediction of High Entropy Alloys Asing Ab-initio Calculations
Microstructural and Mechanical Characterization of a Concentrated FCC CrCoNi Matrix Containing Dispersed L12 Precipitates
Microstructural and Mechanical Evolutions of a Ti-V-Nb-Ta Refractory High-entropy Alloy during Thermal Aging
Microstructural Inversion Accompanied by B2 to hP18 Phase Transformation in a BCC based Refractory Complex Concentrated Alloy
Microstructure and Deformation Processes of a Refractory Complex Concentrated Alloy Exhibiting B2-type Order
Modeling Dislocation Dynamics in Refractory Multi-principal Element Alloys
Modelling of Equiatomic Mo-Nb-Ti-Zr and Mo-Nb-Ti Systems for Use in Irradiation Environments
Multi-component Rare Earth Silicates for Dual Purpose Thermal/Environmental Barrier Coatings
Nanoscale Origins of Passivation in a Refractory High Entropy Alloys
New Physics-based Features for Machine Learning Oxidation Properties of Refractory Complex Concentrated Alloys
New Title: Computational Discovery of Ultra-High Strength BCC Refractory MPEAs
NOW ON DEMAND: HEA/CCA Concept and High Throughput Screening in the Development of High-performance Al Alloys
NOW ON DEMAND: In-situ X-ray and Thermal Imaging of Refractory High Entropy Alloying during Laser Directed Deposition
NOW ON DEMAND: Recent Advances, Hardening, Softening and Ductility in High Entropy Brasses and Bronzes
NOW TUESDAY 2 PM: Investigating the Internal Oxidation of High Entropy Alloy
ON DEMAND: An Experimental Study of the Effects of Deviations from AlCoCrFeNi Alloy Composition and Heat Treatment on the Microstructure, Phase Stability and Properties of Cast High Entropy Alloys
ON DEMAND: Computational Design of Co-free Complex Concentrated Alloys (CCA) for Nuclear Applications
ON DEMAND: Computationally Guided High Entropy Alloy Discovery
ON DEMAND: Deformation Behaviors in Refractory High-entropy Alloys
ON DEMAND: Density Functional Theory Study of Short-range Order in Bulk, Grain Boundary, Stacking Fault, and Surface of CrMnFeCoNi Alloy
ON DEMAND: Designing New Corrosion Resistant Materials with Exceptional Strength-ductility Synergy and Good Weldability Using High Entropy Approach
ON DEMAND: Developing High Entropy Alloys for Advanced Nuclear Applications
ON DEMAND: Development of an Interatomic Potential for the FeNiCrMn System: Dislocation Properties
ON DEMAND: Effect of Crystal Orientation on Creep Deformation Behavior of a Single Crystal High Entropy Superalloy
ON DEMAND: Efficient Prediction of the Yield Strength of BCC High Entropy Alloys
ON DEMAND: Experimental Determination of Interdiffusion and Defect Kinetics in Multicomponent Systems
ON DEMAND: Factors Affecting Stacking Fault Energies in Concentrated Alloys Using Density Functional Theory and Machine Learning
ON DEMAND: High-temperature Gas Corrosion at 800 °C in H2O-O2-SO2 of CrMnFeCoNi (HEA) and CrCoNi (MEA)
ON DEMAND: High-throughput Screening of Structural High Entropy Alloys Using a Machine Learning Approach
ON DEMAND: Influence of HEA Composition on High Temperature Performance
ON DEMAND: Investigation of Reduced Activation FCC-type High Entropy Alloys for Nuclear Applications
ON DEMAND: Lattice Distortion and Its Effect on Strength in Refractory High-entropy Alloys
ON DEMAND: Mechanical Properties of High Entropy Single Crystal Superalloys at Elevated Temperatures
ON DEMAND: Multiphase, Multispecies Simulation of High Entropy Alloys for Brazing Applications
ON DEMAND: Nanomechanical Testing of In-situ Synthesized Laser-deposited High Entropy Alloys for Aerospace Applications
ON DEMAND: Novel Mechanisms for Strengthening High-entropy Alloys
ON DEMAND: On the Corrosion and Passivation of Multi-principal Element Alloys (MPEAs)
ON DEMAND: On the Phase Stability, Mechanical Properties, and Deformation Mechanisms of the Equiatomic CrFeNi Medium-entropy Alloy
ON DEMAND: On the Tuning of Creep Properties by Balancing Trace Elements
ON DEMAND: Optimized Tailoring of Phase Constitution Leading to Exceptional Oxidation Behavior in AlCoCrFeNi HEAs
ON DEMAND: Precipitation Strengthened High Strength Al0.2CoCrFeNiMo0.5 High Entropy Alloy
ON DEMAND: Predict Solid Solution Formation Using Machine Learning
ON DEMAND: Predicting Fundamental Properties of bcc Refractory Multicomponent Alloys Using Electronic Descriptors and Statistical Learning
ON DEMAND: Prediction of Optimal High Entropy Alloys Using New Thermodynamic Multi-objective Criteria
ON DEMAND: Refractory Metals-based High Entropy Alloys: Phase Evolution and Radiation Damage Studies
ON DEMAND: Short-range Order Influence on the Quality of Interatomic Potential Built Using Machine Learning Technique for High Entropy Alloys
ON DEMAND: Solidification Behavior and Mechanical Properties of a MnFeCoNiCu HEA for Filler Applications
ON DEMAND: Superior High-temperature Strength in a Refractory High-entropy Alloy
ON DEMAND: Synergistic Studies on the Effects of Cr Contents on Phases and Mechanical Properties of CuNiTiFeCr HEAs
ON DEMAND: The Combined Effect of Irradiation and Stress on Damage in a BCC CrMnFeV High-entropy Alloy
ON DEMAND: The Effect of Titanium and Silicon on the Phase Equilibrium in the Co-Cr-Fe-Mn-Ni System
One Order of Magnitude Improvement of the Magnetocaloric Effect of Rare-earth-free High-entropy Alloys
Ostwald Ripening in High Entropy Alloys
Phase Field Modeling of Transformation Pathways in Multi-phase HEAs
Phase Stability and Mechanical Properties of MgAlSiCr Containing Low-density High Entropy Alloys
Precipitation and Strengthening in AlCoCrFeNi High Entropy Alloys
Predicting Phase Stability of Refractory Complex Concentrated Alloys with Pairwise Mixing Enthalpy
Preparation and Characterization of a HEA Thin Film Combinatorial Sample
Probing the Property Design Space of Ti-V-Nb-Hf Refractory High-entropy Alloys via Al-alloying
Processing Pathways and Tensile Ductility of Polycrystalline Refractory Multi-principal Element Alloys
Production of Spherical, Refractory HEA Powders
Recent Progress in the CoCrNi Alloy and Derived Systems
Role of Local Chemical Order on Orientation Relationship Determination in High Entropy Alloys
Single Phase Formation in a CoCrFeNiAlCu High Entropy Alloy by an Ultrafast Sintering Technique
Solute-strengthening in Alloys with Short-range Order
Solution Thermodynamics Guided Tuning of Local Chemical Ordering in High Entropy Alloys: Implications for Mechanical Properties
Spontaneous Grain Boundary Roughening in HEAs and Implications for Mobility
Stacking Fault Energy (SFE) of Multi-component Alloys Based in Fe80-X MnXCo10Cr10 (X= 20, 30, 40, 50 at%) Using a Computational Approach
Strengthening in a Model Alloy: Theory and Experiment in AuNi
Suppression of Disorder in High Entropy Oxides
Synthesis and Evaluation of High Entropy Perovskite Oxides as Solid Oxide Fuel Cell Cathodes
Tensile Creep Behavior of NiCoCr and ODS-NiCoCr Multi-principal Element Alloys
The Cyclic Plastic Response and the Fatigue Induced Microstructural Changes of Equiatomic CrCoNi Medium-entropy Alloy
The Cyclic Plastic Strain Localization and the Fatigue Crack Initiation in Equiatomic CrCoNi Medium-entropy Alloy
The Interplay between Phase Transformation and Mechanical Properties in High Entropy Alloys
Theoretical Predictions of Short-range Order in High Entropy Alloys
Thermodynamic and Mechanical Properties Prediction within the Cr-Fe-Mn-Ni Alloy System
Thermomechanical Processing of a CrMnFeCoNi by Cold Rolling and Annealing
Tuning Chemical Ordering in the Concentrated Solid Solution of High Entropy Alloys
Twinning Engineering of High-entropy Alloys
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