| About this Abstract |
| Meeting |
2021 TMS Annual Meeting & Exhibition
|
| Symposium
|
Ceramic Materials for Nuclear Energy Research and Applications
|
| Presentation Title |
Towards a Model of Coupled Irradiation and Corrosion |
| Author(s) |
Amitava Banerjee, Aaron A Kohnert, Edward F Holby, Laurent Capolungo, Blas P. Uberuaga |
| On-Site Speaker (Planned) |
Blas P. Uberuaga |
| Abstract Scope |
Materials in reactors are exposed to multiple extreme environments simultaneously. Two of these environments – irradiation and corrosion – can lead to extensive changes in the materials properties. However, while there have been a number of empirical observations of their combined effects, there is still much unknown at a fundamental level regarding the synergies between these two extremes. Here, we present the foundations of a model of coupled irradiation and corrosion. Using Fe-Fe2O3 as a model system, density functional theory (DFT) calculations at the hybrid level are used to characterize the thermodynamics and kinetics of radiation-induced point defects. These are then used to parameterize a cluster dynamics model that accounts for the radiation-induced defect supersaturations on the corrosive response of the material. This model, while based on a number of assumptions, reveals that, based on conditions, radiation damage can have a dramatic effect on corrosion. |
| Proceedings Inclusion? |
Planned: |