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 Wang; Ji jung Kai

doi:10.1016/j.scriptamat.2020.03.030

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 Wang, Ji jung Kai

School of Materials Sience and Engineering

Research output: Contribution to journal › Article › peer-review

32 Scopus citations

Abstract

The multicomponent L1₂ 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 L1₂ phase. Different from that in most traditional alloys, the coarsening constant of multicomponent L1₂ particles decreases with the increasing lattice misfit in HEAs. This finding provides a new view for understanding the sluggish coarsening kinetics of L1₂ phase in HEAs.

Original language	English
Pages (from-to)	111-116
Number of pages	6
Journal	Scripta Materialia
Volume	183
DOIs	https://doi.org/10.1016/j.scriptamat.2020.03.030
State	Published - 1 Jul 2020

Keywords

Coarsening kinetics
High entropy alloys
Lattice misfit
Thermal stability

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10.1016/j.scriptamat.2020.03.030

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title = "Anomalous effect of lattice misfit on the coarsening behavior of multicomponent L12 phase",

abstract = "The multicomponent L12 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 L12 phase. Different from that in most traditional alloys, the coarsening constant of multicomponent L12 particles decreases with the increasing lattice misfit in HEAs. This finding provides a new view for understanding the sluggish coarsening kinetics of L12 phase in HEAs.",

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T1 - Anomalous effect of lattice misfit on the coarsening behavior of multicomponent L12 phase

AU - He, Feng

AU - Zhang, Kaiwei

AU - Yeli, Guma

AU - Tong, Yang

AU - Wei, Daixiu

AU - Li, Junjie

AU - Wang, Zhijun

AU - Wang, Jincheng

AU - Kai, Ji jung

PY - 2020/7/1

Y1 - 2020/7/1

N2 - The multicomponent L12 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 L12 phase. Different from that in most traditional alloys, the coarsening constant of multicomponent L12 particles decreases with the increasing lattice misfit in HEAs. This finding provides a new view for understanding the sluggish coarsening kinetics of L12 phase in HEAs.

AB - The multicomponent L12 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 L12 phase. Different from that in most traditional alloys, the coarsening constant of multicomponent L12 particles decreases with the increasing lattice misfit in HEAs. This finding provides a new view for understanding the sluggish coarsening kinetics of L12 phase in HEAs.

KW - Coarsening kinetics

KW - High entropy alloys

KW - Lattice misfit

KW - Thermal stability

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U2 - 10.1016/j.scriptamat.2020.03.030

DO - 10.1016/j.scriptamat.2020.03.030

M3 - 文章

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SN - 1359-6462

VL - 183

SP - 111

EP - 116

JO - Scripta Materialia

JF - Scripta Materialia

ER -

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

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Keywords

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