About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
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Local Ordering in Materials and Its Impacts on Mechanical Behaviors, Radiation Damage, and Corrosion
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Presentation Title |
In-situ TEM Study of the Role of Short-range-order in the Deformation of Medium Entropy Alloy |
Author(s) |
Yang Yang, Ying Han, Yongwen Sun, Mark Asta, Robert O. Ritchie, Andrew M. Minor |
On-Site Speaker (Planned) |
Yang Yang |
Abstract Scope |
Several recent researches have shown strong evidence of chemically short-range-order (SRO) in medium/high-entropy alloys. While it is hypothesized that SRO can be another dimension to modulate the properties of structural materials significantly, much needs to be done to elucidate further how SRO impacts the materials' performance and the underlying mechanisms. Here, we perform in situ TEM mechanical testing and four-dimensional scanning transmission electron microscopy (4D-STEM) to reveal the evolution of SRO and its interaction with other defects in medium entropy alloy under deformation. The challenges and opportunities in the characterization of the dynamical behaviors of SRO will be discussed. |
Proceedings Inclusion? |
Planned: |
Keywords |
High-Entropy Alloys, Characterization, Mechanical Properties |