| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Materials and Chemistry for Molten Salt Systems
|
| Presentation Title |
Effect of Trace Element Addition on Mechanical Properties and Corrosion Resistance in Ni-based Alloys for Molten Salt Reactor |
| Author(s) |
Byung-Hyuk Jun, Chaewon Kim, Daejong Kim, Hyeon-Geun Lee |
| On-Site Speaker (Planned) |
Byung-Hyuk Jun |
| Abstract Scope |
The mechanical stability and corrosion resistance of structural alloy materials used in molten salt reactors under extreme high-temperature corrosion environments are very important. In this study, 1.2 kg ingots of Ni-based alloys were prepared by adding trace elements such as La, Cu and Zr to improve mechanical tensile properties, atmospheric oxidation and corrosion resistance. After that, hot rolling and heat-treatment were performed, and specimen processing was performed to find out the effect of mechanical and corrosion properties. According to the type and content of trace elements, the tensile strength and elongation were measured at room temperature and high temperature of 700°C, and atmospheric oxidation and high-temperature molten salt (57mol% NaCl - 43mol% MgCl2) corrosion experiments were performed at 700°C for 200 hours. The mechanical properties, atmospheric oxide films and molten salt corrosion properties according to the addition of trace elements were analyzed and compared with the Hastelloy N standard specimen. |
| Proceedings Inclusion? |
Planned: |