About this Abstract |
Meeting |
2024 TMS Annual Meeting & Exhibition
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Symposium
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Accelerated Qualification of Nuclear Materials Integrating Experiments, Modeling, and Theories
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Presentation Title |
E-19: The Effects of Irradiation, Orientation, and Temperature on the Compressive Strength of Single-Crystal Zirconium via In-Situ TEM Micropillar Testing |
Author(s) |
Philip Alarcon-Furman, Matthew deJong, Ryan Schoell, Chris Smyth, Geoffrey L. Beausoleil, Djamel Kaoumi |
On-Site Speaker (Planned) |
Philip Alarcon-Furman |
Abstract Scope |
Zirconium-based alloys are widely used in the nuclear industry because of their low thermal-neutron cross-section, corrosion resistance, and mechanical stability at service conditions. Zirconium, typically a hexagonal closed-packed structure, is inherently anisotropic. Demand for higher burnups and outdated models call for the study of zirconium behavior under service conditions. In this study, the effects of irradiation, orientation, and temperature on single-crystal zirconium micropillars were studied via in-situ micro-compression in the TEM. Single-crystal zirconium micropillars were irradiated with 1 MeV Kr ions, and compressed at 25C and 300C to determine the effects of anisotropy on the temperature and irradiation response of zirconium in terms of the mechanical properties. In addition, micropillars were also taken in the same directions from a neutron irradiated Zirconium single-crystal and tested as is and after further irradiated with ions. The suitability of such small scale testing to help accelerate mechanical testing is demonstrated and discussed. |
Proceedings Inclusion? |
Planned: |