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Meeting 2023 TMS Annual Meeting & Exhibition
Symposium Methods, Techniques, and Materials Discovery of Irradiation Effect Using In-situ Microscopy
Presentation Title Revealing Heat-treatment Induced Stoichiometric Variations in Neutron-irradiated Yttrium Hydrides Using In Situ Synchrotron Radiation Diffraction
Author(s) Mahmut Nedim Cinbiz, Mehmet Topsakal, Annabelle Le Coq, Kory Linton
On-Site Speaker (Planned) Mahmut Nedim Cinbiz
Abstract Scope Neutron-irradiated and fresh yttrium hydride specimens were characterized in situ using high-energy synchrotron x-ray diffraction experiments while the samples were subjected to heat treatments. The evolution of the yttrium hydride and minor yttrium phases were monitored as a function of temperature and time. The high-energy synchrotron x-rays enabled to determine hydrogen redistribution in the samples during the heat treatments. While heating, the initial yttrium phase completely dissolved above 400˚C in all samples. During the cooling stage of the fresh sample, the initial yttrium phase re-appeared around 200˚C, but its intensity was lower than its initial intensity. For irradiated samples, yttrium phase unexpectedly diminished during the cooling stage, which revealed a positive shift on the hydrogen atomic fraction after heat treatments while expecting vice versa. This indicated that yttrium hydride superior phase stability. Observations were speculated by the release of trapped hydrogen from pre-existing and irradiation-induced defects
Proceedings Inclusion? Planned:
Keywords Nuclear Materials, High-Temperature Materials, Other

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

Advanced In Situ Mechanical Testing Approaches to Evaluate the Degradation of Nuclear System Components
Deep Learning Defect Detection in Electron Microscopy of Radiation Damage in Metals
Discovering the Mechanisms of Helium Channel Evolution Via In-situ Annealing and Observation in TEM
Effect of Stacking Fault Energy on Microstructural Evolution of Compositionally Complex Alloys under In situ Dual-beam Heavy-ion Irradiation
Evolution of Vacancy/Interstitial Dislocation Loops in Pure Zr and Ti at Elevated Temperatures Observed by In-situ TEM Annealing
Helium Effects on Defect Evolution of In-situ Irradiated Additive-manufactured Grade 91 Steel
High Throughput Assessment of Advanced Nuclear Materials via In-situ TEM
In-situ 3D High-energy X-ray Diffraction Study on Deformation Behavior of Neutron-irradiated Fe-9%Cr
Industrial Nuclear Materials Applications for In-situ Microscopy
Is a TEM Foil “Bulk Enough” to Study the Parabolic Air-ingress Oxidation of W PFM in In-situ Environmental TEM?
Laboratory-based 3D X-ray Imaging of Neutron-irradiated TRISO Fuel
Observations of ‘Far from Equilibrium’ Phenomena under in Reactor Thermal Conditions Using In Situ TEM
Particle-induced X-ray Emission Spectroscopy (PIXE) for In Situ Monitoring of Corrosion Under Proton Irradiation in the Irradiation-corrosion Experiment (ICE)
Perspectives on Quasi-in-situ Characterization of Nuclear Materials Using Synchrotron X-rays
Precipitate and Cavity Evolution in Alloy 718 Under High Temperature In-situ Ion Irradiation using Machine Learning
Quantifying the Recovery of Irradiated and Cold-worked Zr-2.5Nb Using X-ray and Neutron Diffraction Line Profile Analysis
Radiation Tolerance of Amorphous Alumina Cladding Coatings for Heavy Liquid Metal Cooled Fast Reactors: Temperature and Dose Effect.
Rare-earth Titanates Ln2TiO5 Crystal Chemistry and Radiation Response. A Review.
Revealing 3D Microstructures in Nuclear Materials with High-energy X-rays
Revealing Heat-treatment Induced Stoichiometric Variations in Neutron-irradiated Yttrium Hydrides Using In Situ Synchrotron Radiation Diffraction
Simultaneous Proton Irradiation Changes Molten Fluoride Salt Corrosion Rates and Mechanisms
Transient Grating Spectroscopy of Defect Annealing Kinetics and Microstructural Evolution in Self-ion Implanted Tungsten with In-situ Annealing
Uncovering Transient Grain Boundary Absorption States Using Deep Learning Object Detection
Understanding the Amorphization Limit in Irradiated Ceramics via Repeated In situ Recrystallization Experiments
Utilizing High-energy X-rays for Microstructural Characterization of Metallic Hydrides

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