About this Abstract |
| Meeting |
2022 TMS Annual Meeting & Exhibition
|
| Symposium
|
Materials and Chemistry for Molten Salt Systems
|
| Presentation Title |
N-12: Molten Salt Corrosion and Irradiation Behaviors of Cladded and Surface-treated SS316H |
| Author(s) |
Matthew Weinstein, Hongliang Zhang, Cody Falconer, William Doniger, Louis Bailly-Salins, Alex Nelson, Kumar Sridharan, Adrien Couet |
| On-Site Speaker (Planned) |
Adrien Couet |
| Abstract Scope |
Current structural alloys, code certified for the MSRs temperature ranges, contain high levels of chromium, making them highly susceptible to salt corrosion. One potential solution to circumvent the need for code certification of new alloys is to design claddings that will protect the underlying code certified materials from corrosion damage during operation. In this work, we examined the corrosion of Ni and Cu electroplated, and carburized claddings on SS316H using static corrosion tests. The corrosion tests were performed in molten FLiNaK at 700 C up to 1000 hours. Pre- and post-corrosion Scanning Electron Microscope (SEM), energy-dispersive-spectroscopy and glow-discharge-optical-emission-spectroscopy were performed on cladding cross-sections and surfaces to evaluate degradation. Additionally, high-temperature 4MeV Ni heavy ion irradiation was performed up to 50 displacement-per-atom to assess the phase stability and irradiation behavior of the cladding systems. SEM, transmission electron microscopy and nano-indentation were performed to assess interfacial irradiation induced defects and associated hardening. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Environmental Effects, Nuclear Materials, Other |