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Meeting MS&T23: Materials Science & Technology
Symposium Advanced Characterization of Materials for Nuclear, Radiation, and Extreme Environments IV
Presentation Title Multimodal Characterization of Materials Corrosion in Molten Salts
Author(s) Lingfeng He
On-Site Speaker (Planned) Lingfeng He
Abstract Scope Molten Salt Reactors (MSRs) are considered promising candidates for next-generation nuclear reactors to meet the US energy demands. However, a significant challenge in the development of MSRs is the corrosion of structural materials. Developing a comprehensive understanding of the corrosion behavior of metals in molten salts is essential to create effective corrosion mitigation strategies for MSRs. Multimodal characterization techniques, including focused ion beam/scanning electron microscopy with electron backscatter diffraction, energy dispersive X-ray spectroscopy (EDS) and secondary ion mass spectroscopy, transmission electron microscopy with EDS and electron energy loss spectroscopy, and synchrotron-based scanning transmission X-ray tomography, are used to characterize pure Ni and Ni-Cr model alloys corroded in molten chloride salts. Quasi-in-situ TEM and in-situ synchrotron X-ray nano-tomography techniques are developed to observe the time-dependent evolution of molten salt corrosion at different time and length scales.


Accelerated Assessment of Microstructure-Mechanical Property Relationships in Ni Based Superalloys
Accelerated Creep Testing for High-Temperature and Nuclear Applications
Advanced In-situ Strain Mapping for Zr Oxidation by 4D-STEM
Assessing the Ability of Nuclear Fuel Performance Codes to Predict Radially Resolved Properties in Oxide Fuels
Capturing 3D Evolution of Twin Networks in Titanium as a Function of Applied Strain
Effect of Solutes on the Radiation Induced Segregation in Ferritic Alloys at ∑3- grain Boundaries
Effect of Strain Rate on Tensile Properties of C250 Maraging Steel
Enabling Multiscale Materials Characterization with Machine Learning
Four-dimensional Scanning Transmission Electron Microscopy (4D-STEM) Characterization of Intergranular Corrosion of Austenitic Stainless Steels in Lead-bismuth Eutectic
High-Temperature Irradiation Behavior of Piezoelectric Aluminum Nitride
In Situ SEM Nanomechanics at Cryogenic Temperatures
Interdiffusion Behaviour of UN with Zircaloy-4 via Diffusion Couple Studies
M-1: Novel Method for Fabricating and Analysis of 3D Printed Composite for Radiation Shielding Containing Metalized Halloysite Nanotube
Mapping Elemental Distributions Across Thin Corrosion Films Formed on Nuclear Reactor Core and Structural Materials via Ex-situ And In-situ Atom Probe Tomography
Multimodal Characterization of Materials Corrosion in Molten Salts
Phase Stability of Delta-ZrH Under Ion Irradiation
Probing Nanoscale Properties of Radioactive Material by Advanced Correlative Microscopy
STEM-based Mapping of Nanoscale Point Defects Produced via Temperature, Irradiation, And Corrosion
Structural Stability of REE-PO4 (REE=Sm,Tb) under Swift Heavy Ion Irradiation
Thermodynamic Modeling and Calculation of Phase Formation Processes Under Irradiation Conditions of Uranium-plutonium Nitride Fuel
Transition Metal Carbonitride Materials Exposed to Swift Heavy Ions

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