| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Materials and Chemistry for Molten Salt Systems
|
| Presentation Title |
Effect of Impurities on Molten Salt Corrosion of 316H Stainless Steel in FLiNaK Medium |
| Author(s) |
Bhagwat Ghule, Kailee Buttice, Adrien Couet |
| On-Site Speaker (Planned) |
Bhagwat Ghule |
| Abstract Scope |
FLiNaK molten salt mixture are inevitably exposed to oxygen, moisture and other impurities during their preparation and reactor operation. All of these impurities act as oxidizers and alters the salt redox potential which accelerates the metal alloy corrosion. In the present study, the corrosion behavior of 316H SS exposed to FLiNaK salt, purified through different methods, including sparging of hydrogen, gaseous hydrogen fluoride and Argon gas is investigated. After exposure, corrosion performance of 316H SS is evaluated using mass change analysis and depth of corrosion attack. Microscopy was performed to analyzed corrosion products, microstructural changes and element dissolution. X-ray Diffraction analysis was used to identity phases of corrosion products and GDOES technique was employed to measure average depth of attack in terms of elements depletion, mainly Cr. These findings are used to better understand underlying mechanism of 316HSS corrosion in FLiNaK molten salt, highlighting the impact of different purification methods. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Nuclear Materials, Characterization, Environmental Effects |