About this Abstract |
Meeting |
2024 TMS Annual Meeting & Exhibition
|
Symposium
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Mechanical Behavior at the Nanoscale VII
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Presentation Title |
Helium Bubble Evolution in a Fully Twinned ε-ZrH Microstructure and Its Effect on Deformation Behavior |
Author(s) |
Darren Parkison, Caitlin Kohnert, Yongqiang Wang, Matthew Chancey, Thomas Nizolek, Aditya Shivprasad, Tarik Saleh, Peter Hosemann |
On-Site Speaker (Planned) |
Darren Parkison |
Abstract Scope |
Transition metal hydrides are being studied as moderators for advanced nuclear concepts where size is a critical factor. Zirconium hydrides (ZrHx) are of great interest due to their low thermal neutron cross section and high hydrogen content. The high hydrogen phase, epsilon zirconium hydride (ε -ZrHx), has a completely nano-twinned microstructure that deforms primarily through the formation of new twin lathes. Helium bubbles were used to probe the evolution and effect of inert gas bubbles in that system by implanting a variety of doses using a He implanter. Nanoindentation was then conducted on implanted ε -ZrHx to probe at the effect of bubbles on the mechanical properties of ε -ZrHx and the resulting deformation. Results will be presented on the evolution of helium bubbles and their effect on the deformation of ε -ZrHx. |
Proceedings Inclusion? |
Planned: |
Keywords |
Nuclear Materials, Mechanical Properties, |