About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Materials and Chemistry for Molten Salt Systems
|
| Presentation Title |
Effects of Zr on Ni-Cr Based Alloys in LiCl-KCl Molten Salt via Operando Synchrotron X-Ray Study |
| Author(s) |
Yuxiang Peng, Ankita Mohanty, Kaifeng Zheng , Ellie Kim , Phillip Halstenberg, Bobby Layne, Weixuan Huang , Akhil Tayal , Jorge Moncada Vivas , Xianghui Xiao , Zhongshu Ren , Eli Stavitski, Mingyuan Ge , Sheng Dai, Ruchi Gakhar, Anatoly Frenkel, James Wishart , Yu-chen Karen Chen-Wiegart |
| On-Site Speaker (Planned) |
Yuxiang Peng |
| Abstract Scope |
Chloride-based molten salts are promising media for applications including molten salt reactors. However, corrosion of Ni-based structural alloys, particularly those containing Cr, remains a major challenge. One strategy involves introducing metals more active than alloy elements as sacrificial additives for corrosion protection. However, the interactions between such metal additives and structural materials in molten salts are not fully understood. In this work, Zr was used as a model system to investigate its effect in molten LiCl–KCl salts when interacting with Ni, Cr, and Ni–20Cr. In situ synchrotron X-ray absorption spectroscopy, transmission X-ray microscopy, and diffraction were used to study these interactions. Results show that reaction pathways and products are temperature dependent. At lower temperatures, Zr dissolves into the salt, while at higher temperatures, intermetallic compounds may form. These findings provide insight into the role of Zr in corrosion mitigation and identify conditions under which Zr induces intermetallic formation. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Energy Conversion and Storage, Nuclear Materials, Sustainability |