About this Abstract |
Meeting |
2022 TMS Annual Meeting & Exhibition
|
Symposium
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Materials and Chemistry for Molten Salt Systems
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Presentation Title |
In-situ Corrosion Monitoring of 316 SS L Natural Convection Loop by Radioactive Isotope Tracking |
Author(s) |
Yafei Wang, Cody Falconer, Aeli Olson, Jonathan Engle, Brian Kelleher, Kumar Sridharan, Adrien Couet |
On-Site Speaker (Planned) |
Yafei Wang |
Abstract Scope |
There is a critical lack of molten salt corrosion studies under flow conditions mostly because of the challenges to quantify corrosion kinetics (dissolution/deposition) in these systems. This study explores the in-situ corrosion monitoring of a 316 SS L molten salt natural convection loop through the thin layer activation technique. Radioactive isotope tracers were generated by 12 MeV proton irradiation of a thinned down tube section on the hot leg. Using HPGE gamma-ray detectors located at different locations, the dissolution of the irradiated 316 SS L was in-situ monitored through the activity measurement of the radioactive isotope tracers. At the same time, the flow of the dissolved isotope tracers was also in-situ monitored at different loop locations. A mass transport model is then developed and validated by the in-situ activity measurements and post-corrosion SEM/EDS tube characterizations. This unique technique is effective for the in-situ corrosion monitoring study in flow conditions. |
Proceedings Inclusion? |
Planned: |
Keywords |
Nuclear Materials, Other, Iron and Steel |