About this Abstract |
Meeting |
2020 TMS Annual Meeting & Exhibition
|
Symposium
|
Advanced Characterization Techniques for Quantifying and Modeling Deformation
|
Presentation Title |
Slip and Hydrides in Zirconium |
Author(s) |
Siyang Wang, Finn Giuliani, Thomas Benjamin Britton |
On-Site Speaker (Planned) |
Thomas Benjamin Britton |
Abstract Scope |
Zirconium is used in nuclear fuel cladding materials in water reactors, where due to corrosion there can be hydrogen pick up. This can form hydrides which decorate the microstructure, and can impact the mechanical performance of zirconium alloys (Zircaloy-4) which affects the structural integrity of the cladding material. We have used micromechanical testing to explore the local interaction of <a> basal and <a> prism slip with hydride interfaces selected using EBSD of large grain ‘blocky alpha’ zircaloy-4, focussing on property extraction using micropillar compression and direct observation of slip-hydride interface mechanics. In this talk, we will explore how hydrides affect hardening and the slip transmission through interfaces thereby changing the local mechanical performance. The consequences of the interaction of slip and hydride for polycrystalline deformation will be explored using polycrystal tests with high resolution digital image correlation (HR-DIC). |
Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |