About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Materials and Chemistry for Molten Salt Systems
|
| Presentation Title |
Dose Rate Effects of Simultaneous Proton Irradiation and Molten FLiNaK Corrosion of Ni-20Cr |
| Author(s) |
Cole Evered, Michael Tonks, Kumar Sridharan, Adrien Couet |
| On-Site Speaker (Planned) |
Cole Evered |
| Abstract Scope |
Understanding of how advanced nuclear reactor structural materials perform under simultaneous irradiation and molten salt corrosion is limited. Three separate Ni-20Cr samples were simultaneously irradiated with 2.8 MeV protons and exposed to purified molten FLiNaK at 600°C for 6 hours and damage rates of 2.0×10-6-4.9×10-6 dpa/s at the alloy-salt interface. Samples exposed to the lower range of damage rates showed minimal corrosion differences between the irradiated and non-irradiated regions, but as damage rates increased, more corrosion morphologies were observed in the irradiated regions. SEM/EDS analysis revealed the well-documented dealloying pores and Cr depletion along GBs. 3D tomography and TEM characterization are currently underway to elucidate the structure and local chemical distribution of the observed corrosion pores. This data along with proposed mechanisms will be presented. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Nuclear Materials, Environmental Effects, |