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Meeting MS&T25: Materials Science & Technology
Symposium Advanced Characterization of Materials for Nuclear, Radiation, and Extreme Environments VI
Presentation Title Comparative Assessment of Biaxial Creep Anisotropy in ZIRLOŽ and HANA-4 Zirconium Alloys: Influence of Microstructure and Processing
Author(s) Mahmoud Y. Hawary, K.L. Murty
On-Site Speaker (Planned) Mahmoud Y. Hawary
Abstract Scope Zirconium-based alloys, particularly ZIRLOŽ and HANA-4, are essential for nuclear fuel cladding due to their exceptional mechanical properties and radiation resistance. This research comparatively assesses the anisotropic biaxial creep behavior of these Nb-containing alloys in cold-worked stress-relieved (CWSR) and recrystallized (Rx) conditions. Internally pressurized tubing was tested under varying hoop-to-axial stress ratios (0–2), and anisotropy was quantified using modified Hill criterion parameters and formability analysis. Creep loci constructed at constant energy dissipation demonstrated deviations from isotropy across processing conditions. Microstructural influences, including crystallographic texture and grain shape, were examined through electron backscatter diffraction (EBSD) to correlate orientation distributions and grain aspect ratios with creep response. Additionally, temperature and stress effects were analyzed to elucidate deformation kinetics and identify underlying mechanisms. Results emphasize that microstructural evolution and processing significantly influence creep anisotropy, highlighting critical pathways for optimizing zirconium alloys to enhance long-term reactor performance and safety.

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

A Time Dependent Multiaxial Inelastic Constitutive Model for Nuclear Graphite
Bridging Distributed Autonomous Platforms for Materials Innovation
Comparative Assessment of Biaxial Creep Anisotropy in ZIRLOŽ and HANA-4 Zirconium Alloys: Influence of Microstructure and Processing
Corrosion of Ni-based alloys in Light Water Reactor Environment: An In-situ Bragg Coherent Diffraction Imaging approach
Coupled Experimental and Modeling of the Interactions Between Dislocations, Precipitates, and Grain Boundaries from Atomic to Mesoscale
Development, Validation, and Uncertainty Quantification of a BISON Model for Pd Penetration in TRISO Particle Fuels
Gamma Ray Shielding Performance of 3D Printed Polymers
High-Temperature Corrosion of Pure Vanadium in Molten Chloride Salt Environments
In-Situ and 3D Measurements of Dynamic Processes in Nuclear Materials Utilizing Synchrotron High-energy X-rays
Influence of Point Defect Evolution on Thermal Conductivity Degradation and Fission Gas Behavior in UO₂ Under Accelerated Irradiation
Quantifying Amorphous Fractions using Different Characterization Techniques
Radiation-Induced Amorphization in WO₃ and MoO₃: Structural Response
Statistical Effects of Carbon on Primary Radiation Damage and Initial Clustering of Defects in Austenitic Stainless Steel
Strain Field Evolution Around MX Precipitates in a Ferrite Matrix After Neutron Irradiation at 490°C to 7.4 dpa
Ultra-High Temperature Thermal Characterization of Materials for Nuclear Applications
Unique Aspects of Coupling Experiment and Modeling in Understanding Irradiation Behavior of Nuclear Materials

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