About this Abstract |
Meeting |
2024 TMS Annual Meeting & Exhibition
|
Symposium
|
Materials Corrosion Behavior in Advanced Nuclear Reactor Environments
|
Presentation Title |
Investigating the Corrosion Mechanisms of Ni-Cr alloys in Molten Fluoride Salt |
Author(s) |
Hamdy Arkoub, Miaomiao Jin |
On-Site Speaker (Planned) |
Miaomiao Jin |
Abstract Scope |
Understanding the corrosion behavior between the Ni-Cr structural alloys and the molten fluoride salt is of significance to evaluate the performance of molten salt systems. To examine the complex chemical processes at the interface, we developed a reactive force field for FLiNaK-NiCr based on the formulations of ReaxFF, which enables us to study the interfacial reaction dynamics at the atomic scale. With a much-reduced computational cost compared to ab-initio calculations, we have demonstrated the accuracy of this potential, by comparing the results again first-principles calculations and experimental measurements. We also demonstrate the change in corrosion behavior given the variations in alloy composition, alloy surface condition, salt compositions, and temperature. These results provide useful information towards evaluating the local corrosion of Ni-based alloys in molten salt for the advancement of molten salt reactors. |
Proceedings Inclusion? |
Planned: |