About this Abstract |
| Meeting |
MS&T25: Materials Science & Technology
|
| Symposium
|
Advanced Characterization of Materials for Nuclear, Radiation, and Extreme Environments VI
|
| Presentation Title |
High-Temperature Corrosion of Pure Vanadium in Molten Chloride Salt Environments |
| Author(s) |
Aaron Gabriel S. Penders, Stephanie C. Baldivieso, Alejandro R. Ballesteros, Ruchi Gakhar, Kaustubh K. Bawane |
| On-Site Speaker (Planned) |
Aaron Gabriel S. Penders |
| Abstract Scope |
Molten halide salts are pivotal in advanced molten salt reactor and fusion reactor designs due to their high-temperature heat transfer and thermal energy storage capabilities. Vanadium alloys, known for their high-temperature strength and radiation resistance, are emerging as promising candidate structural materials for these applications. Despite this, there is limited understanding of their corrosion performance under high temperature molten salt conditions. To that end, this study presents in-situ UV-VIS corrosion and post-corrosion electron microscopy analyses of pure vanadium subjected to LiCl-KCl eutectic molten salt, with and without 1 wt.% redox potential increasing EuCl3 additive, at 450 and 700 °C. UV-VIS spectroscopy reveals that vanadium proceeds through different oxidation states, as indicated by shifts in the absorption spectra, while electron microscopy captures microstructural, fine structure and elemental changes near the molten-salt interface. Understanding these interactions will enhance the structural alloy design principles for extreme molten salt environments. |