About this Abstract |
Meeting |
2022 TMS Annual Meeting & Exhibition
|
Symposium
|
Materials and Chemistry for Molten Salt Systems
|
Presentation Title |
Understanding Molten Salt Corrosion in Ni-20Cr Model Alloy Using Multimodal Characterization |
Author(s) |
Kaustubh K. Bawane, Xiaoyang Liu, Ruchi Gakhar, Michael Woods, Mingyuan Ge, Xianghui Xiao, Wah-Keat Lee, Simon M Pimblott, James F Wishart, Yu-chen Karen Chen-Wiegart, Lingfeng He |
On-Site Speaker (Planned) |
Kaustubh K. Bawane |
Abstract Scope |
Corrosion is a major concern for molten salt facing structural materials in molten salt reactors (MSRs) and concentrated solar power plant (CSPs) applications. In this work, we utilized quasi-in-situ TEM technique and in-situ synchrotron X-ray nanotomography to study microstructural/chemical evolution during molten salt corrosion in Ni-20Cr model alloy as a function of time. Ni-20Cr TEM disc was corroded outside the microscope in KCl-MgCl<sub>2</sub> salt at 500<sup>o</sup>C for 60 s in subsequent 20 s iterations, followed by TEM investigations after every corrosion iteration. In-situ synchrotron X-ray nanotomography technique enabled direct observations of corrosion processes in Ni-20Cr microwire when exposed to KCl-MgCl<sub>2</sub> at 500<sup>o</sup>C. Both techniques were complimentary and provided valuable insights on molten salt corrosion processes at their respective length and time scales. This work was supported as part of the Molten Salts in Extreme Environments (MSEE) Energy Frontier Research Center, funded by the U.S. Department of Energy Office of Science. |
Proceedings Inclusion? |
Planned: |
Keywords |
Nuclear Materials, Characterization, Other |