Engineering transformation pathways in an Al0.3CoFeNi complex concentrated alloy leads to excellent strength–ductility combination

S. Dasari; A. Jagetia; V. Soni; B. Gwalani; S. Gorsse; R. Banerjee

doi:10.1080/21663831.2020.1777215

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Engineering transformation pathways in an Al0.3CoFeNi complex concentrated alloy leads to excellent strength–ductility combination

Original Reports | 更新时间：2026-08-19

- Engineering transformation pathways in an Al0.3CoFeNi complex concentrated alloy leads to excellent strength–ductility combination
- Materials Research Letters Vol. 8, Issue 11, Pages: 399-407(2020)
- 作者机构：
  
  1. a Department of Materials Science and Engineering University of North Texas Denton
  2. b CNRS Univ. Bordeaux Bordeaux INP ICMCB UMR,5026
- 作者简介：
- 基金信息：
- DOI：10.1080/21663831.2020.1777215
  CLC：
- Online First：02 July 2020，
  
  Published：2020
- 稿件说明：
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S. Dasari, A. Jagetia, V. Soni, et al. Engineering transformation pathways in an Al0.3CoFeNi complex concentrated alloy leads to excellent strength–ductility combination[J]. Materials Research Letters, 2020, 8(11): 399-407.
DOI：

S. Dasari, A. Jagetia, V. Soni, et al. Engineering transformation pathways in an Al0.3CoFeNi complex concentrated alloy leads to excellent strength–ductility combination[J]. Materials Research Letters, 2020, 8(11): 399-407. DOI： 10.1080/21663831.2020.1777215.

摘要

Abstract

Guided by thermodynamic modeling

engineering phase transformation pathways via thermo-mechanical processing

in a complex concentrated alloy/high entropy alloy (HEA) of composition Al

0.3

CoFeNi

lead to a novel multi-scale microstructure consisting of fine-scale FCC + L1

grains mixed with B2 + BCC grains. The two-step pathway comprises initial decomposition of the parent single-phase FCC to form a fine-grained FCC + B2 microstructure

which further decomposes in the second step into the complex four-phase mixture

exhibiting an excellent combination of tensile yield stress of ∼1490 MPa

ultimate tensile strength of ∼1663 MPa

with a good ductility of ∼12% at room temperature.

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Related Author

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Related Institution

a Materials Science and Engineering Program University of California San Diego La Jolla

b Department of NanoEngineering University of California San Diego La Jolla

a Department of Materials Science and Engineering University of North Texas Denton TX USA

b Currently at Physical and Computational Sciences Directorate Pacific Northwest National Laboratory Richland

a Multidisciplinary Research Center – Cardinal Stefan Wyszynski University in Warsaw

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