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Meeting 2023 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) 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). 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 07/17/2022
Proceedings Plan Planned:

A High, Medium to Low Throughput Study of Aqueous Passivation in FeCoNi–(Crx–Aly) Alloys across Classical Cr Threshold Concentration
Atomistic Exploration of Light-weight Refractory High Entropy Alloys by Promoting Short-range Chemical Order Using a Machine Learning Potential
B-1: Concentration Effect of Tellurium on the Corrosion and Mechanical Properties of 304 Stainless Steel in Molten FLiNaK Salt
Cold Working Enhanced Thermal Stability of Native Oxide Solar Absorbers on FeMnNiAlCr High Entropy Alloys for Concentrated Solar Power System
Conditions for Exclusive External Scale Formation in the High Temperature Oxidation of Alloys
Corrosion and Mechanical Behavior of High-Entropy Alloys
Corrosion Behavior of High-Entropy Alloys
Determining Elemental Distributions across Thin Corrosion Films on Multi-principal Element Alloys via Atom Probe Tomography
Effect of Niobium Addition on the Passivity and Corrosion Resistance of TiHfZrNbx High-entropy Alloys in a Hanks’ Solution
Effect of the Chemical Composition on the Formation of Compact (Cr,Ta,Ti)O2 Scales on Refractory High-entropy Alloys (RHEAs) within the Ta-Mo-Cr-Ti-Al System
Effects of pH on the Corrosion and Tribocorrosion Behavior of Al0.1CrCoFeNi High Entropy Alloys in 0.6 M NaCl Solution
Elemental Effects on Oxidation Kinetics of Refractory High Entropy Alloys
Enabling Oxidation-resistant Refractory Complex, Concentrated Alloys via a Machine Learning for Accelerated Materials Discovery Framework
Flow and Steam Enhanced Degradation of Once Through Steam Generation Piping Steels
High-Throughput Computation of Short-Range Order Types in MPEA Alloys
High Temperature Oxidation of CoNiFeMnCr High Entropy Alloys Reinforced by MC-carbides
High Temperature Oxidation of NbTiZr and HfNbTaTiZr RMPEAs
Hot Corrosion of TP347H in Coal Ash – an Electrochemical Noise Investigation
How Alloying Elements Affect Passivation and Dissolution in the NiCrFeCoMn System: New Insights Using Element-resolved Electrochemistry
Hydrogen Diffusion towards Notch Tips in Zirconium Alloys
Influence of Hydrogen on the Low Cycle Fatigue Behavior of the Equiatomic CrMnFeCoNi High Entropy Alloy
Intermediate and High-Temperature Oxidation Behavior of an Equiatomic CrTaTi Alloy from 800C to 1400C
Investigation of Spinel Phase Formation on Ni-doped FeCrAl Alloy in Multiple Environments
Limitations of Equiatomic Refractory High Entropy Alloys: Role of Reactive Elements in Al-containing HfNbTaTiZr
Modeling Element-resolved Dissolution of Compositionally Complex Alloys in Aqueous Environments
Modelling the Interactions of Zirconium Hydrides
Novel Refractory Metal-based High Entropy Silicide-Borides and their Oxidation at 1100C
On the High-temperature Oxidation of Complex Concentrated Alloys FeAlCrNixVy
Passivation and Corrosion Resistance of Compositionally Complex Alloys: Effects of Cr
Role of Surface Deformation on the High-Temperature Oxidation Response of FeNiCr-based HEAs
Tailoring Oxidation Behavior of MPEAs Through Microstructural Modification
The Hydrogen Charging-induced Surface Degradation on High-entropy Alloys Studied via In-situ Techniques
Tuning of Hierarchical Oxide Evolution in NbTiZr-based RMPEAs
Understanding Elemental Effects on the Accelerated Corrosion of FeCrAl Alloy System in Steam Environments

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