| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Phase Transformations and Microstructural Evolution
|
| Presentation Title |
Evaluation of Threshold Stress Inducing Hydride Reorientation in Zirconium Cladding Using Multiphase Field Modeling |
| Author(s) |
Wooseob Shin, Kunok Chang |
| On-Site Speaker (Planned) |
Kunok Chang |
| Abstract Scope |
As the zirconium has low neutron absorption cross section and high ductility, it is widely used as cladding materials in nuclear industry. However, Zr cladding could undergo hydride-related degradations during the storage and hydride reorientation one of the degradation mechanisms makes the material brittle and influences to the integrity by changing the direction of hydride from circumferential to radial direction during the re-precipitation process. We simulated the formation and growth of intermediate hydride phases, ζ and γ phases and thermodynamic stable δ phase in the two-dimensional system using the phase-field method. Through this computational study, we investigated a role of intermediate phases in nucleation of δ-phase. In addition, the microstructural evolution of δ-phase has been predicted using the developed computational framework. Furthermore, threshold stress inducing hydride reorientation was evaluated setting up the boundary condition in various nucleation model. We adopted Multiphysics Object Oriented Simulation Environment (MOOSE) framework. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Nuclear Materials, Computational Materials Science & Engineering, Phase Transformations |