| About this Abstract |
| Meeting |
2021 TMS Annual Meeting & Exhibition
|
| Symposium
|
2021 Technical Division Student Poster Contest
|
| Presentation Title |
Mechanical and Microstructural Properties of FeCrAl Accident Tolerant Fuels Cladding Subjected to Flow Boiling CHF Testing |
| Author(s) |
Rajnikant Umretiya, Donghwi Lee, Mark Anderson, Raul Rebak, Jessika Rojas |
| On-Site Speaker (Planned) |
Rajnikant Umretiya |
| Abstract Scope |
Enhanced Accident Tolerant Fuels (ATFs) systems for light water reactors require high-temperature oxidation resistance in steam environments compared to the current UO2 – zirconium fuel system. The Critical Heat Flux (CHF) is an important aspect of the thermal-hydraulic performance that needs to be investigated to safety margins, where materials’ surface parameters have evidenced to affect it. This work investigates the surface characteristics, microstructure, and mechanical properties of several FeCrAl alloy ATF candidates before and after flow boiling experiments. Surface characteristics were studied using different material characterization techniques such as contact profilometry, AFM, contact angle goniometry, among others. After CHF tests the average microhardness value was increased by 10-15% that was confirmed with higher mechanical properties acquired by ring compression testing. Furthermore, after CHF testing, the oxide formation was studied using XPS and TEM analysis. |
| Proceedings Inclusion? |
Undecided |
| Keywords |
Characterization, Nuclear Materials, Mechanical Properties |