About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
|
Nanostructured Materials in Extreme Environments
|
Presentation Title |
Thermal Stability and Mechanical Properties of Nanostructured High-entropy Alloys and Quasicrystals |
Author(s) |
Yu Zou |
On-Site Speaker (Planned) |
Yu Zou |
Abstract Scope |
In the first part of my presentation, I will talk a few strategies for the fabrication of nanostructured HEAs. Those HEAs pillars exhibit high yield strengths and good ductility up to 1100 °C. I also demonstrate that such nanostructured HEA films show substantially enhanced stability for high-temperature, long-duration conditions. Nanostructured HEAs combining these properties represent a new class of materials in small-dimension devices potentially for high-stress and high-temperature applications.
In the second part of my presentation, I will talk about the mechanical behavior of quasicrystals using micro-thermomechanical techniques over the temperature range of 25-500 °C, which has never been explored before. A few interesting phenomena have been observed, including micro-pillar shrinkage, phase transformations, grain refinement, and thermally induced transitions in deformation behavior. This study shows a new opportunity to study complex intermetallic phases in broad size and temperature regimes. |
Proceedings Inclusion? |
Planned: |
Keywords |
High-Entropy Alloys, Mechanical Properties, Characterization |