About this Abstract |
| Meeting |
MS&T25: Materials Science & Technology
|
| Symposium
|
Advancements in Molten Salt/Metal Technology in Energy Applications: From Atoms to Plants
|
| Presentation Title |
EuCl3 mediated corrosion of Ni and Ni-20Cr Model Alloy in LiCl-KCl molten salt |
| Author(s) |
Kaustubh K. Bawane, Yuxiang Peng, Linu Malakkal, Mario Matos, William Phillips, James Wishart, Yu-chen Karen Chen-Wiegart, Ruchi Gakhar |
| On-Site Speaker (Planned) |
Kaustubh K. Bawane |
| Abstract Scope |
The metal ion impurities in the salt are often inevitable (e.g. fission products, corrosion products, etc.) and can significantly affect corrosion performance of the structural materials. One of the fission products, Eu in its 3+ oxidation state, when mixed with molten chloride salt is known to cause accelerated corrosion in structural alloys. However, its effects on the microstructural and chemical evolution in the alloy and salt-alloy interface during corrosion is not studied well. In this work, we studied corrosion of pure Ni and Ni-20Cr model alloy with and without EuCl3 additive. This talk will discuss key corrosion events such as intergranular and intragranular attacks, selective dissolution, and changes in oxidation states, etc. characterized using advanced electron microscopy techniques. This work was supported as part of the Molten Salts in Extreme Environments (MSEE) Energy Frontier Research Center (EFRC), funded by the U.S. Department of Energy, Office of Science |