|About this Abstract
||2022 TMS Annual Meeting & Exhibition
||Advances in Multi-Principal Elements Alloys X
||Deformation behavior of a multicomponent L21 Heusler alloy
||Rui Feng, Chuan Zhang, Michael Gao, Zongrui Pei, Yan Chen, Michael Widom, Ke An, Peter Liaw
|On-Site Speaker (Planned)
Ordered intermetallic structures consist of two or more metals bonded with specific stoichiometries, which have attractive high-temperature properties because of the strong atomic bonds. However, such strong directional bonds also cause brittleness at room temperature due to an insufficient number of slip systems. The concept of high-entropy alloys (HEAs) opens up a new avenue to tune intermetallic compounds’ intrinsic characteristics to pursue outperforming properties. Nevertheless, the understanding of the deformation behavior of the multicomponent intermetallic compounds is still scarce. In this study, a single-phase multicomponent L21 Heusler alloy is designed based on the Al-Cr-Fe-Mn-Ti system, whose mechanical deformation behavior is studied by in-situ neutron diffraction and transmission-electron microscopy. The plastic deformation behavior of this Heusler alloy is fundamentally understood by the observed dislocation slips and the diffraction line-profile analysis. The present work can offer insights into the design of high-performance multicomponent ordered intermetallic alloys and related composites.
||High-Entropy Alloys, Mechanical Properties, Characterization