About this Abstract |
Meeting |
2022 TMS Annual Meeting & Exhibition
|
Symposium
|
Materials and Chemistry for Molten Salt Systems
|
Presentation Title |
Redox Control as Corrosion Control Method in Molten FLiNaK |
Author(s) |
Krishna Moorthi Sankar, Preet M Singh |
On-Site Speaker (Planned) |
Krishna Moorthi Sankar |
Abstract Scope |
One of the major concerns for MSRs is the significant corrosion of structural alloys in FLiNaK. The corrosion in the form of selective dissolution of active alloying elements in these molten salts depends on the redox potential of the salt. This redox potential can be controlled by various chemical and electrochemical techniques and thereby corrosion of structural alloys in the salt can be controlled. In this study, corrosion behaviour of selected Ni and Fe based alloys were studied in molten FLiNaK at 700 oC. The effect of various chemical and electrochemical redox control techniques such as addition of reducing agents to the salt, purification of the salt, and the use of applied potential were studied to understand their ability to mitigate corrosion of selected alloys in FLiNaK. This presentation will discuss our results on the efficacy of each tested redox control method in controlling the corrosion of candidate alloys. |
Proceedings Inclusion? |
Planned: |
Keywords |
Nuclear Materials, High-Temperature Materials, Other |