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Meeting 2023 TMS Annual Meeting & Exhibition
Symposium Phase Stability in Extreme Environments
Sponsorship TMS Structural Materials Division
TMS Materials Processing and Manufacturing Division
TMS: Corrosion and Environmental Effects Committee
TMS: Nuclear Materials Committee
TMS: Phase Transformations Committee
Organizer(s) Andrew K. Hoffman, Catalyst Science Solutions
Kinga A. Unocic, Oak Ridge National Laboratory
Janelle P. Wharry, Purdue University
Kaila Morgen Bertsch, Lawrence Livermore National Laboratory
Raul B. Rebak, GE Global Research
Scope Materials development for extreme environments including high temperature turbines and nuclear reactors involves the development of alloys which are resilient against a variety of degradation mechanisms. These degradation mechanisms include oxidation/corrosion, hydrogen embrittlement, precipitation hardening or instabilities, phase decomposition, fatigue, and wear. Traditional structural alloys such as austenitic steels and Ni superalloys, as well as new material systems such as multicomponent alloys or multiple principal element alloys can all suffer from a variety of phase instabilities that are likely to impact long term performance. Understanding material stability in these extreme environments is paramount to enhancing the lifetime of key components.

The purpose of this symposium is to create a forum where researchers from across academia, national laboratories, and industry can share insights on recent advancements and the practical impact of phase stability on the performance of material systems. This includes current materials for applications such as light water reactors and power/aviation turbine systems as well as future applications such as fusion reactors and hydrogen power systems. A variety of perspectives from modeling and simulation to predict behavior and lab scale testing to failure analysis of field components will help to create a fuller understanding of mechanisms and impact.

Experimental and/or theoretical studies are sought on topics including but not limited to:
-Phase separation or decomposition in extreme environments
-Radiation induced phase transformations
-Deformation induced phase transformations (e.g. deformation induced martensite)
-Long term thermal aging
-High temperature thermal cycling
-Impact of phase stability on hydrogen embrittlement
-Impact of phase stability on stress corrosion cracking

Abstracts Due 07/17/2022
Proceedings Plan Planned:

Ab initio Simulations to Investigate Oxidation in Ni-based Single-crystal Superalloys
Advanced Additively Manufactured Materials for Fission and Fusion Nuclear Applications
Aging-Induced α' Precipitates in FeCrAl Alloys and Its Effects on Corrosion Behavior
Atom Probe Characterization of Al/Mo Effects on α’ Precipitation in FeCrAl Cladding Alloys
Corrosion Behavior of Co-Fe4Mn4Nb4Si2B14, Fe49Co49V2, and Fe82Cr18 Alloys in Venusian Environment
Cyclic Oxidation Behavior of Novel Ni-based Superalloys
Damage Dependence of Radiation Induced Segregation at Fully Characterized Grain Boundaries in Proton Irradiated 316L Stainless Steel
Decoupling Irradiation Effects on Unusual Deformation Mechanisms in Alloy 625
Density Functional Study of Short-range Order in Cantor Alloy and Its Effect on Point-defects
Determining the Phase Boundary between α and α+α’ at Low-temperatures with Proton Irradiations and APT
Dynamic Sink Strength Effects of Irradiation-induced Precipitates in Advanced Steels for Fusion Reactor Applications
Effect of Annealing Temperature on the Structure and Mechanical Properties of a Single-phase WFeNiMo Multi-principal Element Alloy Film
Effect of Dose Rate and Composition on the Precipitation Behavior of RPV Steels
Effect of α` Chromium-rich Precipitates on the Tensile Properties of Commercial FeCrAl Alloy
Effects of Aluminum Addition and Point Defects on Cr-rich α' Phase Stability in FeCrAl Alloys
Examining the Contribution of Solute Nano-clustering in MA957 to Neutron Irradiation Induced Hardening and Embrittlement
Exploring Temperature and Radiation Damage Induced Phase Transformations in Ta-V-Ti (W,Cr,Fe) Multicomponent Alloys
Fundamental Ionizing and Ballistic Radiation Effects in Multi-component Mineral Phases
Grain-subdivision-dominated Microstructure Evolution in Shear Bands at High Rates
Heat Treatment Design of Inconel 740H Superalloy for Microstructure Stability and Creep Properties Enhancement
High Temperature Oxidation of CrAl Coated Accident Tolerant Fuel Cladding
Influence of Crystal Structure on Helium-induced Nano-tendril Formation in a Multiphase, Multicomponent Alloy
Investigation of Alloy Elements on the Enhanced Oxidation Behavior of Nanocrystalline Alloys
Investigation of Effect of Stress on Laves Phase Precipitation and Growth in Creep-ruptured Grade 92 Steel
Long-range Ordering in Alloy 690 via Isothermal Aging and Irradiation
Martensitic Transformations and Shear-band Interactions in Austenitic Stainless Steel: Effects of Hydrogen
Oxidation Effects in High-temperature Shape Memory Alloys
Phase-field Modeling of Laves Phase Precipitate in Accident Tolerant Cladding
Phase Stability of Metal Hydrides under Combined Radiation and Thermal Environments
Phase Stability of δ-U-50wt%Zr under Thermal Treatment and Irradiation
Phase Transformations Driven by Non-Equilibrium Lattice Point Defects: Fe-based Alloys under Irradiation
Precipitate Evolution in Post-AM Heat Treated and HFIR Irradiated Inconel 718 Alloys
Quantitative Phase Field Modeling of Morphological Evolution of Voids under Ion Irradiation
Reduced Alpa-prime Precipitation during Thermal Annealing and Irradiation in Ultrafine-grained or Nanocrystalline FeCrAl Alloys
Reversible Disorder Transformation of Fe3O4 under Ion Irradiation Evidence by In-situ TEM
Revisiting the Atomic Scale Mechanisms of Stress Corrosion Cracking of Fe-based Alloys with State-of-the-Art Microscopy and Computational Modelling
Steam Oxidation Behavior of Environmental Barrier Coatings
Surface Roughness and Oxidation Kinetics in Ni-based Single-crystal Superalloys
Synergetic Effects of Mn, Ni, and Si on the Formation of Mn-Ni-Si Clusters in the Reactor Pressure Vessel Model Steels
Taming the Pseudoelastic Response of Nitinol Using Ion Implantation
The Impact of Short-order Order on Deformation Phase Transformation and Microstructure Evolution in Multi-principal Element Alloys
The Morphological Stability and Non-equilibrium Growth of Passive Oxide Films
Understanding the Effect of SO2/SO3 Gaseous Environments on the Mixed Deposit-induced Degradation of Advanced Alloys

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