About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
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Materials and Chemistry for Molten Salt Systems
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Presentation Title |
Effects of Impurities on Corrosion of 316H Stainless-Steel in Molten FLiNaK Salt |
Author(s) |
Dino Sulejmanovic, Timothy Hall, Holly Garich , Bruce Pint |
On-Site Speaker (Planned) |
Dino Sulejmanovic |
Abstract Scope |
Halide molten salts are being considered as coolants and solvents of fissile materials for next generation nuclear concepts. One of the main challenges of using molten salts in nuclear reactor applications is their corrosivity to structural alloys, largely due to the presence of impurities which directly or indirectly drive corrosion. Impurities such as water can react with halide salt constituents and form corrosive compounds such as HCl and HF. Understanding the effects of impurities on corrosivity of halide salts to structural alloys is a key step in advancing molten salt reactors (MSRs). To test the effects of impurities on corrosion of alloy coupons, we exposed 316H stainless-steel in molten FLiNaK salt with impurities at 700°C for 500h. Effects of water, transition metal cations and corrosion inhibitors as added impurities in FLiNaK salt were evaluated. This work focuses on mass change, coupon cross-sections, SEM-EDS and salt chemistry analysis. |
Proceedings Inclusion? |
Planned: |
Keywords |
Nuclear Materials, Environmental Effects, Iron and Steel |