| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Materials and Chemistry for Molten Salt Systems
|
| Presentation Title |
The Time-dependent Measurement of Ni-20Cr Corrosion in Molten FLiBe |
| Author(s) |
Ryan Hayes, Raluca O. Scarlat |
| On-Site Speaker (Planned) |
Ryan Hayes |
| Abstract Scope |
Corrosion within non-isothermal molten salt flow loops, after an initial period of chemical equilibration between the metal and the freshly loaded salt, is driven by the thermal-gradient mass transport between the heat source (e.g. reactor core) and the heat sink (e.g. heat exchanger). In the initial period of loop operation, before chemical equilibration, the inventory of oxidizing species within the salt at startup results in a larger corrosion rate than during the thermperature-gradient-driven corrosion phase in a loop. To assess the relationship between oxidant inventory and corrosion rate, a series of corrosion experiments on model binary alloy Ni-20Cr are performed. Several time-scales and differing amounts of oxidant (e.g. EuF3) are employed in FLiBe salt. Metal characterization and salt analysis are utilized to quantify the rates of chromium dissolution from the model alloy under different oxidant conditions. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
High-Temperature Materials, Nuclear Materials, Other |