| About this Abstract |
| Meeting |
Materials Science & Technology 2020
|
| Symposium
|
Advanced Characterization of Materials for Nuclear, Radiation, and Extreme Environments
|
| Presentation Title |
Corrosion Control of Austenitic Stainless Steel and Nickel-Based Alloys in Molten Chloride Salt Environments |
| Author(s) |
Kasey L. Hanson, Krishna Moorthi Sankar, Remi Dingreville, Joshua Sugar, Chaitanya Deo, Preet M. Singh |
| On-Site Speaker (Planned) |
Kasey L. Hanson |
| Abstract Scope |
Chloride salts have been studied for use in nuclear Molten Salt Reactors (MSRs). MSRs offer a viable alternative to light-water reactors, largely due to their ability to operate at low-pressures and superior heat-transfer properties. Thermodynamically driven selective dissolution of alloying elements due to impurities present within the eutectic chloride salt mixture have been identified to be the biggest contributor to material degradation. Research in identifying materials suitable for this environment have largely centered on nickel-based alloys, due to the alloy’s stability resulting from minimal nickel dissolution into the eutectic salt mixture. This research tested nickel-based alloys and one austenitic stainless steel in a KCl—MgCl2 eutectic mixture at 700°C with redox control of the eutectic chloride salt as a method for reducing material degradation and studied what impact such a method may have on material properties of exposed alloys. |