| About this Abstract |
| Meeting |
2021 TMS Annual Meeting & Exhibition
|
| Symposium
|
Mechanical Behavior of Nuclear Reactor Components
|
| Presentation Title |
The Thermo-mechanical Fracture of Chromium-zirconium Systems |
| Author(s) |
T. Hasan, Mohammed A. Zikry |
| On-Site Speaker (Planned) |
Mohammed A. Zikry |
| Abstract Scope |
In this investigation, we introduce a validated computational framework to understand how chromium-based coating fractures occur for different mechanical loading conditions due to the different crystalline structures pertaining to the chromium (b.c.c.) film and the zirconium (h.c.p.) substrate. We further investigate how to control coating adhesion at high temperatures to avoid delamination through tracking how simultaneous and multiple coating and substrate cracks can interact and affect interfacial behavior. Finally, our models provide insights to how the higher strength and moduli of chromium-based coatings influence the overall thermo-mechanical response of coated systems subjected to extreme environments, such that optimal thicknesses can be determined to avoid cladding rupture. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Modeling and Simulation, Mechanical Properties, High-Temperature Materials |