| About this Abstract |
| Meeting |
2021 TMS Annual Meeting & Exhibition
|
| Symposium
|
Materials and Chemistry for Molten Salt Systems
|
| Presentation Title |
Electron Energy Loss Spectroscopy Characterization of Molten Salt Corrosion Damage in Pure Ni and Model Ni-20Cr Binary Alloy |
| Author(s) |
Kaustubh K. Bawane, Panayotis Manganaris, Yachun Wang, Jagadeesh Sure, Arthur Ronne, Xiaoyang Liu, Phillip Halstenberg, Simerjeet K Gill, Kotaro Sasaki, Yu-chen Karen Chen-Wiegart, Shannon Mahurin, Simon M. Pimblott, James F. Wishart, Lingfeng He |
| On-Site Speaker (Planned) |
Kaustubh K. Bawane |
| Abstract Scope |
Characterization of corrosion damage is integral to understanding fundamental mechanisms of interaction between structural alloys and highly corrosive molten salts. Pure Ni and Ni-20Cr model alloys were corroded in molten ZnCl2 and KCl-MgCl2 under argon atmosphere at various temperatures. Dual energy range electron energy loss spectroscopy (EELS) technique was utilized to understand elemental dissolution behavior and oxidation states of dissolved elements in molten salt. Here, we demonstrate Python-based data analysis techniques based on principal component analysis (PCA) and multiple linear least square (MLLS) to monitor changes in the shapes of L2,3 white lines in EELS spectra. The results showed the presence of Cr3+ and Ni2+ in the molten salt, indicating metal dissolution in the form of CrCl3 and NiCl2, respectively. 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 |
Characterization, Nuclear Materials, Other |