| About this Abstract |
| Meeting |
Materials in Nuclear Energy Systems (MiNES) 2021
|
| Symposium
|
Materials in Nuclear Energy Systems (MiNES) 2021
|
| Presentation Title |
Fracture Mechanics-based Testing and DCPD in FLiNaK |
| Author(s) |
Xavier Quintana, Jake Quincey, Peter Beck, George Young, Samuel Briggs, Julie Tucker |
| On-Site Speaker (Planned) |
Xavier Quintana |
| Abstract Scope |
Advanced reactor coolants such as molten salts pose unique challenges for test systems designed to study environmentally assisted cracking (EAC). Challenges with in-situ testing include immersing the sample in molten salt while preventing air exposure and providing sample access for real-time load control and monitoring of crack initiation and growth. An in-situ mechanical test system has been developed that addresses these challenges and is capable of state-of-the-art, fracture mechanics-based EAC testing in molten salt. Slow strain rate and K-controlled fatigue crack growth tests were performed utilizing DCPD for in-situ data collection. Initial tests have been conducted using 316 stainless steel in molten FLiNaK at temperatures up to 700°C. Samples were characterized post-test via scanning electron microscopy to elucidate the salt’s influence on stress corrosion cracking. Inductively coupled plasma-based salt impurity measurements are also used to correlate specimen performance in the salt environment. |
| Proceedings Inclusion? |
Undecided |