| About this Abstract |
| Meeting |
2022 TMS Annual Meeting & Exhibition
|
| Symposium
|
Synergistic Irradiation, Corrosion, and Microstructural Evolution in Nuclear Materials
|
| Presentation Title |
Decoupling of Ion Irradiation Effects on the Corrosion Rate of Zirconium Alloys: Experiment and Modelling |
| Author(s) |
Marc Tupin |
| On-Site Speaker (Planned) |
Marc Tupin |
| Abstract Scope |
Understanding the corrosion processes of fuel rod claddings is still a challenge regarding impact of alloying elements on the oxidation rate. The corrosion mechanisms of zirconium alloys - Zircaloy-4 and M5 - are not fully understood yet, owing to the complexity of these materials, the environment and the ionizing radiation conditions. The goal of our last decade’s research was to decorrelate and separately study the influence of radiation damage into the metal from the induced effects within the oxide layer, the water radiolysis impact. The most remarkable finding is that the radiation effects on the corrosion rate of Zircaloy-4 are broadly speaking negative, whereas M5 alloy, exhibits a better behaviour after ion irradiation. We also studied the relationship between the oxidation process and the H-PickUp phenomenon, and the effect of ion irradiation on the hydrogen pickup fraction. Results and prospects will be discussed in terms of mechanism and modelling. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Nuclear Materials, Environmental Effects, Thin Films and Interfaces |