Ultrafine-Grained AlCoCrFeNi2.1 Eutectic High-Entropy Alloy

I. S. Wani; T. Bhattacharjee; S. Sheikh; Y. P. Lu; S. Chatterjee; P. P. Bhattacharjee; S. Guo; N. Tsuji

doi:10.1080/21663831.2016.1160451

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Ultrafine-Grained AlCoCrFeNi2.1 Eutectic High-Entropy Alloy

Original Reports | 更新时间：2026-08-19

- Ultrafine-Grained AlCoCrFeNi2.1 Eutectic High-Entropy Alloy
- Materials Research Letters Vol. 4, Issue 3, Pages: 174-179(2016)
- 作者机构：
  
  1. Department of Materials Science and Metallurgical Engineering IIT Hyderabad Kandi 5,502 28
  2. Department of Materials Science and Engineering Kyoto University Yoshida Honmachi Sakyo,ku
  3. Department of Materials and Manufacturing Technology Chalmers University of Technology
  4. Key Laboratory of Solidification Control and Digital Preparation Technology (Liaoning Province) School of Materials Science and Engineering Dalian University of Technology
  5. Department of Materials Science and Engineering Kyoto University Yoshida Honmachi Sakyo-ku Kyoto Japan,606-8501
  6. Elements Strategy Initiative for Structural Materials (ESISM)
- 作者简介：
- 基金信息：
- DOI：10.1080/21663831.2016.1160451
  CLC：
- Online First：25 March 2016，
  
  Published：2016
- 稿件说明：
移动端阅览
I. S. Wani, T. Bhattacharjee, S. Sheikh, et al. Ultrafine-Grained AlCoCrFeNi2.1 Eutectic High-Entropy Alloy[J]. Materials Research Letters, 2016, 4(3): 174-179.
DOI：

I. S. Wani, T. Bhattacharjee, S. Sheikh, et al. Ultrafine-Grained AlCoCrFeNi2.1 Eutectic High-Entropy Alloy[J]. Materials Research Letters, 2016, 4(3): 174-179. DOI： 10.1080/21663831.2016.1160451.

摘要

Abstract

The development of microstructure and mechanical properties was investigated in a heavily cold-rolled and annealed AlCoCrFeNi

2.1

high-entropy alloy. The as-cast alloy having a eutectic morphology consisting of alternate bands of ordered L1

and B2 phases was 90% cold-rolled. The deformed microstructure showed profuse shear banding and disordering of the L1

but no transformation of the B2 phase. A duplex microstructure consisting of ultrafine equiaxed grains (∼0.60 µm) of disordered face centered cubic and B2 was observed after annealing at 800°C. The annealed material showed remarkable strength–ductility combination having ultimate tensile strength ∼1.2 GPa and elongation to failure ∼12%.

Impact Statement:

AlCoCrFeNi

2.1

eutectic HEA with ordered L1

and B2 phases can be thermo-mechanically processed to achieve ultrafine structure and remarkable strength-ductility properties.

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