About this Abstract |
Meeting |
2025 TMS Annual Meeting & Exhibition
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Symposium
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Advances in Multi-Principal Element Alloys IV: Mechanical Behavior
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Presentation Title |
Cluster-Model-Based Composition Design Method for High-Entropy Alloys |
Author(s) |
Shuang Zhang, Cunlei Zou, Wanyu Ding, Yajun Zhao, Chuang Dong |
On-Site Speaker (Planned) |
Shuang Zhang |
Abstract Scope |
High-performance materials always possess specific chemical compositions, which strongly suggest the possible existence of some molecule-like structural units, in which the versatile but specific compositions are rooted. Our research group proposed the cluster-plus-glue-atom model in 2007, which is a short-range-order structural model that renders any structure with a structural unit consisting of a nearest-neighbor cluster plus a few outer-shell glue atoms. Here, the cluster-plus-glue-atom model is fully presented to show how to uncover the composition origin of high-entropy alloys. Examples are given in various industrial alloys with high-entropy feature, including stainless steels, superalloys, etc. Based on these composition analysis results, Fe-Cr-Ni-based medium- and high-entropy alloys with excellent mechanical properties are designed. The proposition of cluster-model-based molecule-like structural units supports a new perspective for the research of high-entropy alloys, facilitates the understanding of prevailing materials, and can be a useful tool to guide the exploration of new composition space. |
Proceedings Inclusion? |
Planned: |
Keywords |
High-Entropy Alloys, Modeling and Simulation, Iron and Steel |