| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Phase Stability in Extreme Environments II
|
| Presentation Title |
Impact of Build/Print Variations on Steam Oxidation Performance of 316L Stainless Steel |
| Author(s) |
Elizabeth S. Sooby, Scott Schier, Ana Stevanovic, Brian J. Jaques, Patrick Warren |
| On-Site Speaker (Planned) |
Patrick Warren |
| Abstract Scope |
Additive manufacturing (AM) has emerged as a promising solution for the high-throughput fabrication of unique and complex geometries required in the construction of nuclear reactors. The inherent complexities of the AM process can result in unexpected material properties and performance, necessitating further research. In this study, we investigate the effects of various build conditions (laser energy and spatter deposition) on defect formation and steam oxidation kinetics, while implementing in-situ part identification throughout the entire process. Our focus is on characterizing oxidized AM 316LSS samples subjected to high-temperature steam environments (<65% pH2O) at 800°C using both surface and cross-sectional characterization techniques like Scanning Electron Microscopy (SEM) and Raman. SEM provides detailed microstructural characterization of surface and cross-sectional features, including oxide films and pitting defects. Raman spectroscopy analysis is employed to determine the chemical composition of the polished/passivated surface oxides that form on the samples. By correlating materials characterization and testing with print parameters, print orientation, sample history, and thermal conditions, we aim to enhance our understanding of the relevant performance properties for high temperature steam exposed applications. The findings of this study highlight the potential of AM in the construction of reliable and safe nuclear reactors, leveraging in-situ part qualification. |
| Proceedings Inclusion? |
Planned: |