About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Materials and Chemistry for Molten Salt Systems
|
| Presentation Title |
In-Situ Corrosion Monitoring of Alloy-625 in the Flowing Molten Salt Using Natural Convection Microloop by Radioactive Isotope Tracking |
| Author(s) |
Jagadeesh Sure, Aeli Olson, Cole Evered, Ivan Mitchell, Yafei Wang, Cody Falconer, Jonathan Engle, Adrien Couet |
| On-Site Speaker (Planned) |
Adrien Couet |
| Abstract Scope |
Alloy-625 is considered as a candidate material for TerraPower’s Molten Chloride Fast Reactor. In the present study, the corrosion of Alloy-625 in eutectic molten NaCl-MgCl2 salt was monitored in-situ by coupling the thin layer activation technique to the natural convection microloop. In this technique, Cr, Mn, and Tc radioactive isotopes were generated by a 16 MeV proton irradiation on a thinned tube section of the hot leg of the Alloy-625 microloop. Using Gamma-ray detectors located at different locations, the dissolution and transport of the dissolved isotope tracers of the irradiated Alloy-625 were monitored in-situ through the activity measurement of the radioactive isotope tracers at different microloop locations. Post-corrosion, the microloop sections were analyzed using microscopy to understand the alloy microstructure, corrosion products, and element dissolution. These findings contribute to a better understanding of the corrosion kinetics of Alloy-625 in molten NaCl-MgCl2 salt. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Nuclear Materials, Copper / Nickel / Cobalt, Environmental Effects |