|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Mechanical Behavior of Nanostructured Materials
||Deviations from High-Entropy Configurations in the AlxCoCrCuFeNi Alloys
||Louis J. Santodonato, Yang Zhang, Mikhail Feygenson, Chad Parish, Michael Gao, Richard Weber, Joerg Neuefeind, Zhi Tang, James Morris, Peter Liaw
|On-Site Speaker (Planned)
The goal of the present research is to gain better understanding of the elemental distributions and the evolution of the configurational entropy during the solidification of high-entropy alloys. Ultimately, we wish to understand how the atomic-level configurational properties affect the macroscopic engineering properties. Model alloys in the AlxCoCrCuFeNi family will be discussed, with an emphasis on integrated theoretical and experimental studies, such as ab initio molecular dynamics simulations, neutron scattering, synchrotron X-ray diffraction, high-resolution electron microscopy, and atom-probe tomography. It will be shown that even when these materials undergo cooling transformations involving chemical ordering and elemental segregation, a significant amount of disorder remains, due to the distributions of multiple elements in the major phases. The results suggest that the high-entropy-alloy-design strategy may be used to develop a wide range of complex materials, which are not limited to single-phase solid solutions.
||Planned: Supplemental Proceedings volume