Effect of Microstructure on the Deformation Mechanism of Friction Stir-Processed Al0.1CoCrFeNi High Entropy Alloy

M. Komarasamy; N. Kumar; Z. Tang; R.S. Mishra; P.K. Liaw

doi:10.1080/21663831.2014.958586

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Effect of Microstructure on the Deformation Mechanism of Friction Stir-Processed Al0.1CoCrFeNi High Entropy Alloy

Original Reports | 更新时间：2026-08-19

- Effect of Microstructure on the Deformation Mechanism of Friction Stir-Processed Al0.1CoCrFeNi High Entropy Alloy
- Materials Research Letters Vol. 3, Issue 1, Pages: 30-34(2015)
- 作者机构：
  
  1. Department of Materials Science and Engineering Center for Friction Stir Processing University of North Texas Denton
  2. Department of Materials Science and Engineering The University of Tennessee Knoxville
- 作者简介：
- 基金信息：
- DOI：10.1080/21663831.2014.958586
  CLC：
- Online First：15 September 2014，
  
  Published：2015
- 稿件说明：
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M. Komarasamy, N. Kumar, Z. Tang, et al. Effect of Microstructure on the Deformation Mechanism of Friction Stir-Processed Al0.1CoCrFeNi High Entropy Alloy[J]. Materials Research Letters, 2015, 3(1): 30-34.
DOI：

M. Komarasamy, N. Kumar, Z. Tang, et al. Effect of Microstructure on the Deformation Mechanism of Friction Stir-Processed Al0.1CoCrFeNi High Entropy Alloy[J]. Materials Research Letters, 2015, 3(1): 30-34. DOI： 10.1080/21663831.2014.958586.

摘要

Grain refinement from several millimeters in as-received (AR) condition to the range of 0.35–15 μm was achieved by friction stir processing (FSP). Due to the sluggish nature of atomic diffusion in high entropy alloys (HEAs)

the FSP region exhibited an immense variation in microstructure which was directly attributed to the accumulated plastic strain during FSP. In accordance with the Hall–Petch relationship

yield strength (YS) has increased by a factor of four after grain refinement while maintaining large uniform elongation (UE). The Kocks–Mecking plot indicated different deformation mechanisms operative in both FSP and AR conditions.

Abstract

the FSP region exhibited an immense variation in microstructure which was directly attributed to the accumulated plastic strain during FSP. In accordance with the Hall–Petch relationship

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