About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Materials and Chemistry for Molten Salt Systems
|
| Presentation Title |
Optimizing Chromium for Grain Refinement in Ni-Cr Alloys |
| Author(s) |
Santiago De Stefano Cavazos, Jijo Christudasjustus, Kayla H Yano, Daniel K Schreiber, Tiffany C Kaspar, Michaella S Harris, Elizabeth Sooby |
| On-Site Speaker (Planned) |
Santiago De Stefano Cavazos |
| Abstract Scope |
Nickel-chromium (Ni-Cr) alloys are regarded as promising structural materials for nuclear reactors due to their excellent mechanical strength and corrosion resistance. This study investigated the effect of varying chromium (Cr) concentrations on grain size to better understand microstructural refinement mechanisms. Alloys containing 8%, 12%, 16%, and 20% Cr were synthesized using arc melting to ensure homogeneity. Microstructural characterization was conducted via electron backscatter diffraction (EBSD) to measure grain size distributions. The results revealed a clear trend of grain size reduction with increasing Cr content, with the finest grains observed at 20% Cr. To evaluate the impact of grain size on corrosion resistance, the samples were subsequently exposed to Chloride based molten salt. These findings provide important insight for optimizing Ni-Cr alloys in high-temperature nuclear environments where grain size affects mechanical performance on corrosion behavior. |
| Proceedings Inclusion? |
Planned: |