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Anomalous effect of lattice misfit on the coarsening behavior of multicomponent L12 phase
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Anomalous effect of lattice misfit on the coarsening behavior of multicomponent L12 phase

Feng He, Kaiwei Zhang, Guma Yeli, Yang Tong, Daixiu Wei, Junjie Li, Zhijun Wang, Jincheng WangJi-jung Kai
Scripta Materialia, 卷.183, 頁碼.111-116
07/2020

摘要

Coarsening kinetics High entropy alloys Lattice misfit Thermal stability Materials Science (all) Condensed Matter Physics Mechanics of Materials Mechanical Engineering Metals and Alloys
The multicomponent L1 phase in high entropy alloys (HEAs) has shown excellent thermal stability. However, the understanding of its intrinsic origins is limited to the Lifshitz-Slyozov-Wagner (LSW) theory. In the present study, we investigate the influence of lattice misfit, which is not considered in LSW theory, on the coarsening kinetics of the multicomponent L1 phase. Different from that in most traditional alloys, the coarsening constant of multicomponent L1 particles decreases with the increasing lattice misfit in HEAs. This finding provides a new view for understanding the sluggish coarsening kinetics of L1 phase in HEAs.

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1 檢視次數

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