About this Abstract |
Meeting |
MS&T24: Materials Science & Technology
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Symposium
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High Entropy Materials: Concentrated Solid Solutions, Intermetallics, Ceramics, Functional Materials and Beyond V
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Presentation Title |
Elastic and Plastic Behavior of Binary and Ternary Refractory Multi-Principal-Element Alloys |
Author(s) |
Rui Feng, George Kim, Dunji Yu, Yan Chen, Wei Chen, Peter Liaw, Ke An |
On-Site Speaker (Planned) |
Rui Feng |
Abstract Scope |
Refractory high-entropy alloys (HEAs) or multi-principal-element alloys (MPEAs) have drawn much attention due to their great potential for extreme environment applications. In this study, we study the elastic and plastic behavior of the equiatomic binary and ternary refractory, NbV, NbTiV, and MoNbV MPEAs, which are the essential subsystems of several model refractory HEAs. The elastic behavior of these alloys is investigated by in-situ neutron diffraction and first-principles calculations, revealing the role of constituent elements in affecting elastic properties. The plastic deformation behavior of the alloys is understood by the observation of dislocation slips and the analysis of neutron diffraction profiles. The present work provides valuable insights into the design of ductile and strong refractory high-entropy alloys by rational alloy-design strategy. |