Structure motif of chemical short-range order in a medium-entropy alloy

Xuefei Chen; Fuping Yuan; Hao Zhou; Xiaolei Wu

doi:10.1080/21663831.2022.2029607

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Structure motif of chemical short-range order in a medium-entropy alloy

Original Reports | 更新时间：2026-08-19

- Structure motif of chemical short-range order in a medium-entropy alloy
- Structure motif of chemical short-range order in a medium-entropy alloy
- 材料研究快报（英文） 2022年10卷第3期页码：149-155
- 作者机构：
  
  1. a State Key Laboratory of Nonlinear Mechanics Institute of Mechanics Chinese Academy of Sciences Beijing People’s Republic of China
  2. b School of Engineering Science University of Chinese Academy of Sciences
  3. c Nano and Heterogeneous Materials Center School of Materials Science and Engineering Nanjing University of Science and Technology
- 作者简介：
- 基金信息：
- DOI：10.1080/21663831.2022.2029607
  中图分类号：
- 网络首发：2022-02-01，
  
  纸质出版：2022
- 稿件说明：
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Xuefei Chen, Fuping Yuan, Hao Zhou, 等. Structure motif of chemical short-range order in a medium-entropy alloy[J]. 材料研究快报（英文）, 2022,10(3):149-155.

Xuefei Chen, Fuping Yuan, Hao Zhou, et al. Structure motif of chemical short-range order in a medium-entropy alloy[J]. Materials Research Letters, 2022, 10(3): 149-155.
Xuefei Chen, Fuping Yuan, Hao Zhou, 等. Structure motif of chemical short-range order in a medium-entropy alloy[J]. 材料研究快报（英文）, 2022,10(3):149-155. DOI： 10.1080/21663831.2022.2029607.

Xuefei Chen, Fuping Yuan, Hao Zhou, et al. Structure motif of chemical short-range order in a medium-entropy alloy[J]. Materials Research Letters, 2022, 10(3): 149-155. DOI： 10.1080/21663831.2022.2029607.

摘要

Abstract

The chemical short-range orders (CSRO) are the sub-nanosized entities inherent in high-/medium-entropy alloys (H/MEA). To discern CSRO poses the challenge with pending issues as to under what zone axis in electron diffraction

signature scattering specific to CSRO will appear and what the structure motif of CSRO is. Here

we show extra diffuse scattering by CSRO from [111] and [112] directions in a VCoNi MEA and accordingly

construct the L11-type structure motif

and derive the spacial shape of flat cuboid of CSRO in virtue of diffractions under varying zone axis. Moreover

we demonstrate the methods to identify CSRO in lattice images.

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相关机构

a Department of Materials Science and Engineering Pohang University of Science and Technology Pohang Republic of Korea

b Center for High Entropy Alloys Pohang University of Science and Technology

c Department of Materials Science and Engineering Korea University

b Center for High Entropy Alloys Pohang University of Science and Technology Pohang Republic of Korea

d Graduate Institute of Ferrous Technology Pohang University of Science and Technology

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