About this Abstract |
Meeting |
2020 TMS Annual Meeting & Exhibition
|
Symposium
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High Entropy Alloys VIII
|
Presentation Title |
Formability Enhancement of High-entropy Alloy by Manipulation of Stacking Fault Energy |
Author(s) |
Jeong-Won Yeh, Chanyang Kim, Kook Noh Yoon, Hyun Seok Oh, Myoung-Gyu Lee, Eun Soo Park |
On-Site Speaker (Planned) |
Eun Soo Park |
Abstract Scope |
The rapid evolution of modern industries demands advanced materials exhibiting greatly improved performances. Recently, the development strategies of high entropy alloy (HEA) have shown great potential to resolve these challenges with their inherent mechanisms of damage tolerance under extreme environments such as high stress, high temperature and high radiation flux. However, in order to commercialize HEAs, the formability enhancement should be considered because the ability is closely related to plastically deform without being damaged. However, there is very little attention up to date to evaluate formability in these materials. Herein, we systematically demonstrate the effect of stacking fault energy (SFE) on the formability in FCC HEAs. As a results, the Forming Limit Diagram of FCC HEAs with different SFEs are carefully constructed by both experiments and numerical simulations. Indeed, this result would offer a essential guideline how to design HEAs with optimal shape as well as properties for harsh environments. |
Proceedings Inclusion? |
Planned: Supplemental Proceedings volume; Planned: Supplemental Proceedings volume |