Enhanced strength and ductility in (CoCrNi)92Mo2Al6 medium entropy alloy via dual heterogeneous structures

Tiancheng Li; Haiyang Chen; Yubo Huang; Qiang Hao; Hongchuan Ma; Zaifeng Zhou; Shilei Li; Yan-Dong Wang

doi:10.1080/21663831.2024.2399579

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Enhanced strength and ductility in (CoCrNi)92Mo2Al6 medium entropy alloy via dual heterogeneous structures

Original Reports | 更新时间：2026-08-19

- Enhanced strength and ductility in (CoCrNi)92Mo2Al6 medium entropy alloy via dual heterogeneous structures
- Materials Research Letters Vol. 12, Issue 12, Pages: 895-902(2024)
- 作者机构：
  
  1. a Beijing Advanced Innovation Center of Materials Genome Engineering State Key Laboratory for Advanced Metals and Materials University of Science and Technology Beijing
  2. a Beijing Advanced Innovation Center of Materials Genome Engineering State Key Laboratory for Advanced Metals and Materials University of Science and Technology Beijing Beijing People’s Republic of China
  3. b Institute for Materials Intelligent Technology Liaoning Academy of Materials
- 作者简介：
- 基金信息：
- DOI：10.1080/21663831.2024.2399579
  CLC：
- Online First：11 September 2024，
  
  Published：2024
- 稿件说明：
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Tiancheng Li, Haiyang Chen, Yubo Huang, et al. Enhanced strength and ductility in (CoCrNi)92Mo2Al6 medium entropy alloy via dual heterogeneous structures[J]. Materials Research Letters, 2024, 12(12): 895-902.
DOI：

Tiancheng Li, Haiyang Chen, Yubo Huang, et al. Enhanced strength and ductility in (CoCrNi)92Mo2Al6 medium entropy alloy via dual heterogeneous structures[J]. Materials Research Letters, 2024, 12(12): 895-902. DOI： 10.1080/21663831.2024.2399579.

摘要

Abstract

In the present (CoCrNi)

medium entropy alloy (MEA)

a dual heterogeneous structure is achieved by regulating the degree of recrystallization of the FCC matrix and σ phase precipitation through incomplete annealing. Compared to the alloys with single-phase FCC structure or uniform precipitation structure

this dual heterostructured MEA has superior mechanical properties by possessing the hetero-deformation-induced (HDI) hardening

precipitation strengthening and twinning-induced plasticity (TWIP) mechanism. Our research contributes to the understanding of the micromechanical behavior of heterogeneous materials and also provides a solution to the problem that precipitation increases strength at the expense of plasticity.

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