Cryogenic-deformation-induced phase transformation in an FeCoCrNi high-entropy alloy

Qingyun Lin; Junpeng Liu; Xianghai An; Hao Wang; Yong Zhang; Xiaozhou Liao

doi:10.1080/21663831.2018.1434250

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Cryogenic-deformation-induced phase transformation in an FeCoCrNi high-entropy alloy

Original Report | 更新时间：2026-08-19

- Cryogenic-deformation-induced phase transformation in an FeCoCrNi high-entropy alloy
- Cryogenic-deformation-induced phase transformation in an FeCoCrNi high-entropy alloy
- 材料研究快报（英文） 2018年6卷第4期页码：236-243
- 作者机构：
  
  1. School of Aerospace Mechanical and Mechatronic Engineering The University of Sydney
  2. State Key Laboratory for Advanced Metals and Materials University of Science and Technology Beijing
- 作者简介：
- 基金信息：
- DOI：10.1080/21663831.2018.1434250
  中图分类号：
- 网络首发：2018-02-22，
  
  纸质出版：2018
- 稿件说明：
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Qingyun Lin, Junpeng Liu, Xianghai An, 等. Cryogenic-deformation-induced phase transformation in an FeCoCrNi high-entropy alloy[J]. 材料研究快报（英文）, 2018,6(4):236-243.

Qingyun Lin, Junpeng Liu, Xianghai An, et al. Cryogenic-deformation-induced phase transformation in an FeCoCrNi high-entropy alloy[J]. Materials Research Letters, 2018, 6(4): 236-243.
Qingyun Lin, Junpeng Liu, Xianghai An, 等. Cryogenic-deformation-induced phase transformation in an FeCoCrNi high-entropy alloy[J]. 材料研究快报（英文）, 2018,6(4):236-243. DOI： 10.1080/21663831.2018.1434250.

Qingyun Lin, Junpeng Liu, Xianghai An, et al. Cryogenic-deformation-induced phase transformation in an FeCoCrNi high-entropy alloy[J]. Materials Research Letters, 2018, 6(4): 236-243. DOI： 10.1080/21663831.2018.1434250.

摘要

BSTRACTAn FeCoCrNi high-entropy alloy (HEA) was deformed at ambient temperature and cryogenic temperatures down to 4.2 K. Phase transformation from a face-centered cubic (FCC) structure to a hexagonal close-packed (HCP) structure occurred during cryogenic deformation. Lowering the temperature promotes the transformation. Atomic-scale structural characterisation suggested that the formation of the HCP structure was achieved via the glide of Shockley partial dislocations on every other plane. Due to the kinetic limitation

the occurrence of this transformation was limited even though theoretical investigations predicted lower free energy of the HCP phase than that of the FCC phase in the HEA.

Abstract

the occurrence of this transformation was limited even though theoretical investigations predicted lower free energy of the HCP phase than that of the FCC phase in the HEA.

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相关机构

a State Key Laboratory of Solidification Processing Northwestern Polytechnical University

a State Key Laboratory of Solidification Processing Northwestern Polytechnical University Xi'an People’s Republic of China

b Chongqing Innovation Center Northwestern Polytechnical University

c Shaanxi Key Laboratory of Electrical Materials and Infiltration Technology School of Materials Science and Engineering Xi'an University of Technology

Department of Nuclear Science and Technology Xi'an Jiaotong University

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