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 |
Elucidating the Role of UCl3 in the Corrosion Mechanism of Ni-based Superalloys Exposed to Chloride Molten Salts |
Author(s) |
Trishelle Copeland-Johnson, Michael Woods, Ruchi Gakhar, Daniel Murray, Guoping Cao, Lingfeng He |
On-Site Speaker (Planned) |
Trishelle Copeland-Johnson |
Abstract Scope |
The United States Department of Energy (DOE) aims to diversify the domestic energy portfolio towards more sustainable options, including implementation of molten salt reactor (MSR) technology. Chloride molten salts have been investigated as an appropriate MSR coolant and fuel because their relatively inexpensive, abundant, and exhibit favorable thermophysical properties. However, the corrosivity of chloride molten salts have not been extensively studied, especially with the inclusion of actinide products, such as UCl3. Accordingly, the development of nuclear structural materials with excellent corrosion performance is critical to the successful implementation of MSRs, particularly from a mechanistic perspective. In this investigation, we attempt to elucidate the interfacial corrosion mechanism between Ni-based structural materials, such as Inconel 617, and UCl3-containing salt systems through a multi-modal advanced characterization approach, including electron microscopy techniques. The findings from this investigation will expand the knowledgebase of chloride molten salt corrosion of MSR structural materials for strategic property-to-performance design. |
Proceedings Inclusion? |
Planned: |