About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
|
Materials and Chemistry for Molten Salt Systems
|
Presentation Title |
Accelerated Corrosion of Nickel-Chromium by Europium Trifluoride in FLiNaK |
Author(s) |
Ryan Hayes, Sean Mills, Andrew Minor, Raluca Scarlat |
On-Site Speaker (Planned) |
Ryan Hayes |
Abstract Scope |
Nickel based alloys have been proposed as strong candidate materials for generation IV reactor concepts. The Molten Salt Reactor Experiment demonstrated that their high-temperature stability and corrosion resistance are well suited for the high-neutron flux environment within a salt-cooled nuclear reactor. While these nickel alloys have shown resistance to corrosion in fluoride salts compared to stainless steels, the mechanism by which they are corroded is not well understood. Elucidating this mechanism is made difficult by the many alloying elements often contained in these materials. As such, two samples of a simpler binary alloy of nickel and chromium (80:20 wt%) were exposed to FLiNaK loaded with EuF3 for 4 hours at 600 °C. In varying the amount of oxidizing europium fluoride in the melt, a comparison of corrosion depth between samples allows for an insight on the roles of diffusion and kinetics in corrosion of more complex nickel alloys. |
Proceedings Inclusion? |
Planned: |
Keywords |
Nuclear Materials, Other, |