| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Innovations in High Entropy Alloys and Bulk Metallic Glasses: An SMD & FMD Symposium in Honor of Peter K. Liaw
|
| Presentation Title |
Defect Dynamics and Microstructure Evolution in High Entropy Alloys |
| Author(s) |
Yanwen Zhang, Takeshi Egami, William J. Weber |
| On-Site Speaker (Planned) |
Yanwen Zhang |
| Abstract Scope |
The effort to understand and design concentrated solid-solution alloys (CSAs), including high entropy alloys (HEAs), has prompted fundamental questions that challenge established theories and models currently applicable to conventional alloys. The current understanding of electronic and atomic effects, defect dynamics, and microstructure evolution in CSAs suggests that radiation energy dissipates at different interaction strengths via the energy carriers. Modification of electronic- and atomic-level heterogeneities and tailoring of atomic transport processes can be realized through tuning of the chemical complexity of such alloys via the selection of elements and their concentrations. Controlling energy dissipation via site-to-site chemical complexity reveals new design principles for predictive discovery and guided synthesis of new alloys of new alloys with targeted functionalities, including much increased structural strength and substantially improved radiation performance.
This work was supported by EDDE, an EFRC funded by the U.S. DOE, BES. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |