About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
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Nanostructured Materials in Extreme Environments
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Presentation Title |
A Stable and Irradiation Resistant Ultrafine-grained Aluminum Crossover Alloys |
Author(s) |
Patrick Willenshofer, Matheus Tunes, Oliver Renk, Peter Uggowitzer, Stefan Pogatscher |
On-Site Speaker (Planned) |
Patrick Willenshofer |
Abstract Scope |
Nanostructured materials are not only known for their unique mechanical properties, but also for their high radiation resistance compared to the coarse-grained counterpart. This is due to their high amount of interfaces (i.e. grain boundaries), which serve as sinks for defects and thus limit the formation of dislocation loops. However, under irradiation or upon heating the material may encounter grain coarsening whereby losing their initiated designed properties. In this study, we present a strategy to stabilise the ultrafine-grained microstructure of an AlMgZnCuAg crossover alloy by precipitating irradiation-resistant T-phase at the nanoscale. Furthermore, we are investigating the radiation stability of this alloy in extreme environments during in-situ transmission electron microscopy, and are setting a new benchmark regarding the radiation survivability level in aluminum alloys. The findings of our study make the UFG-AlMgZnCuAg a promising material for space missions in the extreme environment of the solar system. |
Proceedings Inclusion? |
Planned: |
Keywords |
Aluminum, |