Microstructure evolution and composition redistribution of FeCoNiCrMn high entropy alloy under extreme plastic deformation

Pengfei Yu; Ningsong Fan; Yongyun Zhang; Zhijun Wang; Wenya Li; Rocco Lupoi; Shuo Yin

doi:10.1080/21663831.2021.2023678

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Microstructure evolution and composition redistribution of FeCoNiCrMn high entropy alloy under extreme plastic deformation

Original Reports | 更新时间：2026-08-19

- Microstructure evolution and composition redistribution of FeCoNiCrMn high entropy alloy under extreme plastic deformation
- Materials Research Letters Vol. 10, Issue 3, Pages: 124-132(2022)
- 作者机构：
  
  1. a Department of Mechanical Manufacturing and Biomedical Engineering Trinity College Dublin The University of Dublin
  2. b Advanced Manufacturing Technology Research Center Department of Industrial and Systems Engineering The Hong Kong Polytechnic University
  3. c State Key Laboratory of Solidification Processing School of Materials Science and Engineering Northwestern Polytechnical University
- 作者简介：
- 基金信息：
- DOI：10.1080/21663831.2021.2023678
  CLC：
- Online First：28 January 2022，
  
  Published：2022
- 稿件说明：
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Pengfei Yu, Ningsong Fan, Yongyun Zhang, et al. Microstructure evolution and composition redistribution of FeCoNiCrMn high entropy alloy under extreme plastic deformation[J]. Materials Research Letters, 2022, 10(3): 124-132.
DOI：

Pengfei Yu, Ningsong Fan, Yongyun Zhang, et al. Microstructure evolution and composition redistribution of FeCoNiCrMn high entropy alloy under extreme plastic deformation[J]. Materials Research Letters, 2022, 10(3): 124-132. DOI： 10.1080/21663831.2021.2023678.

摘要

Abstract

The microstructure and composition evolution of FeCoNiCrMn high entropy alloy during extreme deformation with a strain rate of 10

–10

−1

induced by cold spray technology was investigated. In the region experiencing extremely large strain and high strain rate deformation

ultrafine nanograins with an average size of smaller than 100 nm were formed due to the occurrence of dynamic recrystallization. Additionally

the rapid redistribution of segregated Mn and Ni elements in extremely deformed FeCoNiCrMn was found for the first time. The reason for this phenomenon is the increased grain boundary area and dislocation density caused by extreme plastic deformation.

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Related Institution

b Suzhou Laboratory

a State Key Lab Powder Met Cent South Univ

f National Institute for Materials Science

e Materials Science Research Center Japan Atomic Energy Agency

d State Key Laboratory for Mechanical Behavior of Materials School of Materials Science and Engineering Xi'an Jiaotong University

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