About this Abstract |
Meeting |
MS&T23: Materials Science & Technology
|
Symposium
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High Entropy Materials: Concentrated Solid Solutions, Intermetallics, Ceramics, Functional Materials and Beyond IV
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Presentation Title |
Prediction of the Ordering Behavior of Alloying Atoms and Diverse Properties of Alloy Phases with Complex Compositions and/or Complex Structures |
Author(s) |
Bo Wu, Panhong Zhao, Cheng Qian, Yang Qiao, Longju Su |
On-Site Speaker (Planned) |
Bo Wu |
Abstract Scope |
Generally, there are many types of alloying elements with different concentrations, and also there are many kinds of sublattices covering from two to even five for a given crystalline alloy phase, thus the site preferences are essential issues to understand. Unfortunately, till now, there is no effective and economical method to predict the site preference of atoms in alloy phase with complex compositions and/or complex structures at high temperature. In this work, we present the recent progress in prediction of the ordering behavior of alloying elements in alloy phases. The sublattice models based on crystallographic structure information were proposed and solved for some demonstrating high entropy alloys, Laves phase, Sigma phases and Ti2AlNb-based intermetallics. Based on the predicted site preference, the crystal configuration,lattice distortion, thermodynamics, and related mechanical properties of a series of alloy phases with complex composition and /or complex structure have been predicted. |