Promoting columnar-to-equiaxed transition in AlCoCrFeNi high entropy alloy during selective laser melting by adding Cr3C2

Xingyu Pan; Chunlei Qiu

doi:10.1080/21663831.2022.2106798

Chinese

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Promoting columnar-to-equiaxed transition in AlCoCrFeNi high entropy alloy during selective laser melting by adding Cr3C2

Original Reports | 更新时间：2026-08-19

- Promoting columnar-to-equiaxed transition in AlCoCrFeNi high entropy alloy during selective laser melting by adding Cr3C2
- Promoting columnar-to-equiaxed transition in AlCoCrFeNi high entropy alloy during selective laser melting by adding Cr3C2
- 材料研究快报（英文） 2022年10卷第12期页码：788-796
- 作者机构：
  
  School of Materials Science and Engineering Beihang University
- 作者简介：
- 基金信息：
- DOI：10.1080/21663831.2022.2106798
  中图分类号：
- 网络首发：2022-08-02，
  
  纸质出版：2022
- 稿件说明：
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Xingyu Pan, Chunlei Qiu. Promoting columnar-to-equiaxed transition in AlCoCrFeNi high entropy alloy during selective laser melting by adding Cr3C2[J]. 材料研究快报（英文）, 2022,10(12):788-796.

Xingyu Pan, Chunlei Qiu. Promoting columnar-to-equiaxed transition in AlCoCrFeNi high entropy alloy during selective laser melting by adding Cr3C2[J]. Materials Research Letters, 2022, 10(12): 788-796.
Xingyu Pan, Chunlei Qiu. Promoting columnar-to-equiaxed transition in AlCoCrFeNi high entropy alloy during selective laser melting by adding Cr3C2[J]. 材料研究快报（英文）, 2022,10(12):788-796. DOI： 10.1080/21663831.2022.2106798.

Xingyu Pan, Chunlei Qiu. Promoting columnar-to-equiaxed transition in AlCoCrFeNi high entropy alloy during selective laser melting by adding Cr3C2[J]. Materials Research Letters, 2022, 10(12): 788-796. DOI： 10.1080/21663831.2022.2106798.

摘要

Abstract

BSTRACTThe 5 at% Cr

particles were mixed with AlCoCrFeNi high entropy alloy powder particles and then selectively laser melted. The addition caused full columnar-to-equiaxed grain transition (CET) and significant grain refinement. The inter-dendritic regions and grain boundaries (GBs) of the as-fabricated sample were segregated with Cr and C

which led to the formation of an FCC belt/network structure along GBs. The grain interior was dominated by BCC/B2 and sporadically decorated by Cr

particles. The partitioning of Cr and C into liquid ahead of the solidification front

which may have generated significant constitutional supercooling

is believed to be responsible for the full CET.

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相关机构

Singapore Institute of Manufacturing Technology

School of Aerospace Mechanical and Mechatronic Engineering The University of Sydney

Max-Planck-Institut für Eisenforschung

School of Mechanical and Aerospace Engineering Nanyang Technological University

a National Engineering Research Center of Light Alloy Net Forming and State Key Laboratory of Metal Matrix Composite Shanghai Jiao Tong University Shanghai People’s Republic of China

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