About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Late News Poster Session
|
| Presentation Title |
C-29: Sensitivity Analysis for Corrosion of Carbon Steel Relevant to Long-Term Repository Conditions |
| Author(s) |
Michael Quinantzin Morales, Robbin Spoon, Laura Sandoval, Rebecca Schaller |
| On-Site Speaker (Planned) |
Michael Quinantzin Morales |
| Abstract Scope |
Understanding the corrosion rates and products of waste containers is essential for ensuring long term safety at the Waste Isolation Pilot Plant (WIPP), particularly given the unique geological and chemical conditions expected in the repository. This study examines the anodic and cathodic polarization behavior of ASTM A1008 steel coupons in saturated salt brines to simulate post closure conditions, where anoxic conditions will prevail. Polarization scans were conducted in both oxic and anoxic states across simulated brine solutions, including Generic Weep Brine (GWB) and ERDA-6 brine, which mimic conditions from the Salado and Castile formations. Additional sensitivity studies were conducted to explore the significant factors for corrosion, including adjustments to brine pH, concentrations, etc. Initial results show an influence of brine composition on corrosion rates with enhanced susceptibility in ERDA-6. The findings from these accelerated tests will enhance our understanding of corrosion mechanisms affecting waste containers pertinent to repository conditions.
Acknowledgements
Sandia National Laboratories is a multimission laboratory managed and operated by National Technology & Engineering Solutions of Sandia, LLC, a wholly owned subsidiary of Honeywell International Inc., for the U.S. Department of Energy’s National Nuclear Security Administration under contract DE-NA0003525. This research is funded by WIPP programs administered by the Office of Environmental Management (EM) of the U.S. Department of Energy. |
| Proceedings Inclusion? |
Undecided |
| Keywords |
Other, Iron and Steel, Nuclear Materials |