| About this Abstract |
| Meeting |
MS&T21: Materials Science & Technology
|
| Symposium
|
Computation Assisted Materials Development for Improved Corrosion Resistance
|
| Presentation Title |
Modeling of High-temperature Corrosion of Zirconium Alloys Using the eXtended Finite Element Method (X-FEM) |
| Author(s) |
Louis Bailly-Salins, Léo Borrel, Wen Jiang, Benjamin W. Spencer, Koroush Shirvan, Adrien Couet |
| On-Site Speaker (Planned) |
Adrien Couet |
| Abstract Scope |
A physically based zirconium alloy corrosion model called the Coupled-Current Charge Compensation (C4) model has been updated to include high-temperature corrosion in order to provide additional critical information (e.g., oxygen concentration profile) under loss-of-coolant accident (LOCA) conditions. The C4 model was implemented in the MOOSE finite-element framework developed at Idaho National Laboratory, enabling it to be coupled with mechanics in the BISON nuclear fuel performance code. The eXtended Finite Element Method (X-FEM) was applied in MOOSE to precisely track the different interfaces. The C4 model implemented with X-FEM in MOOSE now has the capability to accurately predict oxide, oxygen-stabilized α, and prior β phase layer growth kinetics under isothermal exposure at high temperature (1000–1500°C). It can predict the oxygen concentration profile evolution through the whole cladding, enabling evaluation of the remaining ductile thickness—a crucial variable for modeling the mechanical behavior of the fuel cladding under LOCA. |