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Meeting 2024 TMS Annual Meeting & Exhibition
Symposium Environmental Degradation of Multiple Principal Component Materials
Sponsorship TMS Structural Materials Division
TMS: Corrosion and Environmental Effects Committee
Organizer(s) Wenjun Cai, Virginia Polytechnic Institute and State University
XiaoXiang Yu, Novelis Inc.
Vilupanur A. Ravi, California State Polytechnic University Pomona
Christopher R. Weinberger, Colorado State University
Elizabeth J. Opila, University of Virginia
Bai Cui, University of Nebraska-Lincoln
Mark L. Weaver, University of Alabama
Bronislava Gorr, Karlsruhe Institute of Technology (KIT)
Gerald S. Frankel, Ohio State University
ShinYoung Kang, Lawrence Livermore National Laboratory
Srujan Rokkam, Advanced Cooling Technologies, Inc.
Scope Multiple principal component materials seek to utilize configurational entropy to stabilize disordered solid solution phases. The most well-known materials in this novel class include multi-principal element alloys (MPEAs), high-entropy alloys (HEAs), and high-entropy ceramics (HECs). The numerous combinations of constituents in such materials represent a huge but under-explored chemical space and offer considerable freedom in the material design. Among a wide range of material properties observed based on the compositions selected and microstructures developed, the exceptional degradation resistance of some MPEAs and HECs suggests potential applications in severe and extreme environments, while others exhibit reduced environmental durability. This variation in behavior demonstrates that gaps in knowledge still exist regarding the effects of individual elements and their combined effects on reactivity. One can expect more complex processes to occur in the multicomponent systems, including selective oxidation and dissolution of various elements, possible nonstoichiometric oxides and nonequilibrium defect formation, and complicated synergies between materials and the environment. For these reasons, the current models lack the capabilities to fully understand and predict degradation processes in multi principal component materials.

This symposium will provide a platform to discuss and present recent experimental investigations on environmental degradation behavior, novel characterization methods development, and advanced theoretical modeling and computational simulation.

Themes of interest include, but not limited to:
(1) Aqueous and high temperature corrosion, oxidation, and electrochemistry studies of multicomponent materials such as high entropy alloys, ceramics, and intermetallic compounds under various corrosive environments.
(2) Thermodynamics and kinetics of formation and growth of secondary phases including oxide and phase separation in multi-principal elements alloys and high-entropy ceramics.
(3) Interaction of mechanical stresses and corrosive environments, such as
stress corrosion cracking, corrosion fatigue, and tribocorrosion.
(4) Interaction of ion irradiation and corrosive environments, such as irradiation affected corrosion and irradiation-assisted stress corrosion cracking.
(5) Hydrogen pick-up and embrittlement.
(6) Degradation of HEAs in molten salts and liquid metals.
(6) In situ and ex situ electrochemical analysis of oxidation and corrosion kinetics.
(7) Advanced characterization on the structure and composition of oxidation and corrosion products.
(8) Multiscale modeling and computational simulation, including density functional theory, molecular dynamics, kinetic Monte Carlo, CALPHAD, and phase-field methods.
(9) High-throughput materials design, synthesis, tests, and characterization.
(10) Database and machine learning model developments in high-entropy alloys and ceramics design.

Abstracts Due 07/15/2023
Proceedings Plan Planned:

A general mechanism for improving anti-pitting properties of Mn-contained CoCrFeMnNi alloy by removing Cr-depletion
A High Throughput CALPHAD Method of Designing Low Density, Compositionally-Complex Alloys Toward Understanding Lightweighting Elements' Effects on Passivity
Accelerating the Design and Discovery of Tribocorrosion-Resistant Metals by Interfacing Multiphysics Modeling with Machine Learning and Genetic Algorithms
Advanced Studies of Radiation Damage in Compositionally Complex Alloys
Aloe Saponaria gel as a green corrosion inhibitor of carbon steel in an acid médium
Behavior in cooling–induced oxide scale spallation of original and modified Cantor’s HEA alloys oxidized at high temperature
Combinatorial Synthesis of Non-Equiatomic CrMoNbTaW with Improved Strength and Oxidation Resistance
Comparison of initial-stage high temperature oxidation behavior of MCrAlY and Hf-Y co-doped CoCrFeNiAl high-entropy alloy in wet air
Comparison of pitting corrosion behavior of additively manufactured and forged P91 in molten sulfate salt
Corrosion Resistance of 316L Stainless Steel in Hydrochloric Acid
Cracking the Code: Demystifying Early-Stage Oxidation in High Entropy Alloys
Deformation behavior of high entropy alloys as a function of strain rate and temperature
Designing Refractory Alloy Bond Coats that Develop Complex TGOs: A Study on the Cr-Ta System
Development of Novel Light Refractory High Entropy Alloys for High Energy Accelerator Windows
Effects of Varying Al Content on the Microstructure of the Fe-Cr-Ni-Mn-Al Multi-Component Alloy System
Elemental Affinity Engineering for Improving Hydrogen Embrittlement in CoCrFeNiV High-entropy Alloys
Environmental Degradation of Polymer-Based Composite Materials: Challenges and Mitigation Strategies
Environmental Impact of Multi-Component Fiber-Reinforced Composites: Challenges and Green Solutions
Evaluation of a Nb-Si-Ti-Al-Hf alloy as a bond coat for Nb-based alloys
Exploring the synergy of Al-Cr in aqueous passivation of [FeCoNi]CrxAly compositionally complex alloys (CCAs) across Cr threshold concentrations
High-Entropy Alloys Corrosion Behaviors
High Entropy Alloys for Advanced Modular Reactors
High temperature oxidation of HEAs and NC-strengthened HEAs in presence of water vapor
Impaired Repassivation Kinetics of Multi-Principal Element Alloy Surfaces Caused by Selective Oxidation and Nickel Enrichment
Insights into Defects and Failure of Multi-Component Ultra-High Temperature Carbides
Insights on the Oxidation Behavior of Refractory High Entropy Alloys
Investigation of Mechanical Stress and B10 Exposure on Fkm Polymer
Irradiation and oxidation behavior of multi-principal element alloys manufactured by different techniques
Isothermal high temperature oxidation of Cantor’s–based MC–reinforced HEAs versus their Mn and Cr contents
Orientation dependency of hydrogen-induced cracks in single-crystalline CrCoNi medium-entropy alloy
Oxidation of NiCoCr Alloys in High Temperature Air and Steam Environments
Role of Surface Deformation on the High-temperature Oxidation Response of FeCrNi-Based Multi-principal Element Alloys
Simulations of chloride on hydroxylated passive oxide surfaces related to localized corrosion initialization
Some effects of hydrogen on the CoCrFeMnNi alloy
Study of the Corrosive effect of Enzymatic, Multi-enzymatic, and Sodium Hypochlorite solutions on Surgical-grade Stainless Steel Instruments used in the Operating room Area of the Clinical Hospital.
Utilizing Small Punch Test (SPT) for Mechanical Behaviour Study of Electrochemically and Gaseous Hydrogenated Electron Beam Melting (EBM) and Wrought Ti–6Al–4V
Wear behavior of multi-component ultra-high temperature carbides

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