Fe3+–Co2+–Ni2+溶液体系制备FeCoNi中熵合金

成宗佑; 赵青; 陶梦洁; 都基军; 黄兴希; 刘承军

doi:10.1007/s12613-024-2888-6

Volume 32 Issue 1

Jan. 2025

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文章导航 > 矿物冶金与材料学报（英文） > 2025 > 32(1): 92-101

Zongyou Cheng, Qing Zhao, Mengjie Tao, Jijun Du, Xingxi Huang, and Chengjun Liu, Preparation of FeCoNi medium entropy alloy from Fe³⁺–Co²⁺–Ni²⁺ solution system, Int. J. Miner. Metall. Mater., 32(2025), No. 1, pp. 92-101. https://doi.org/10.1007/s12613-024-2888-6

Cite this article as:

Zongyou Cheng, Qing Zhao, Mengjie Tao, Jijun Du, Xingxi Huang, and Chengjun Liu, Preparation of FeCoNi medium entropy alloy from Fe3+–Co2+–Ni2+ solution system, Int. J. Miner. Metall. Mater., 32(2025), No. 1, pp. 92-101. https://doi.org/10.1007/s12613-024-2888-6

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研究论文

Fe³⁺–Co²⁺–Ni²⁺溶液体系制备FeCoNi中熵合金

1)
东北大学多金属共生矿生态化冶金教育部重点实验室, 沈阳110819, 中国
2)
东北大学冶金学院, 沈阳110819, 中国
3)
低碳炼钢前沿技术教育部工程研究中心, 沈阳110819, 中国

通讯作者:
赵青 E-mail: zhaoq@smm.neu.edu.cn

陶梦洁 E-mail: 2310655@stu.neu.edu.cn

文章亮点

(1) 溶胶–凝胶法和共沉淀法均可制备无定形FeCoNi MEA前驱体

(2) 在FeCoNi中采用碳热还原和氢还原法制备熵合金的最佳反应温度为1500°C

(3) 在1500°C时，可以通过氢还原法制备FeCoNi MEA，而碳热还原不完全

(4) 在最优条件下，采用氢还原法制备的FeCoNi MEA的饱和磁化强度为155.8 emu^.g⁻¹，矫顽力为113.5 A^.m⁻¹

中文摘要

近年来，中熵合金以其优异的物理和化学性能成为研究热点。通过控制合理的元素组成和工艺参数，可以使中熵合金具有与高熵合金相似的性能，并降低成本。本文分别采用溶胶–凝胶法和共沉淀法制备了FeCoNi中熵合金前驱体，采用碳热还原法和氢还原法制备了FeCoNi中熵合金。研究了FeCoNi中熵合金的物相和磁性能。结果表明：在1500°C下经碳热还原和氢还原制备了FeCoNi中熵合金。在碳热还原法制备的FeCoNi中熵合金中检测到一定量的碳。氢还原法制备的合金均匀，纯度较高。氢还原产物具有较好的饱和磁化强度和较低的矫顽力。

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Research Article

Preparation of FeCoNi medium entropy alloy from Fe³⁺–Co²⁺–Ni²⁺ solution system

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Abstract

Abstract

In recent years, medium entropy alloys have become a research hotspot due to their excellent physical and chemical performances. By controlling reasonable elemental composition and processing parameters, the medium entropy alloys can exhibit similar properties to high entropy alloys and have lower costs. In this paper, a FeCoNi medium entropy alloy precursor was prepared via sol–gel and co-precipitation methods, respectively, and FeCoNi medium entropy alloys were prepared by carbothermal and hydrogen reduction. The phases and magnetic properties of FeCoNi medium entropy alloy were investigated. Results showed that FeCoNi medium entropy alloy was produced by carbothermal and hydrogen reduction at 1500°C. Some carbon was detected in the FeCoNi medium entropy alloy prepared by carbothermal reduction. The alloy prepared by hydrogen reduction was uniform and showed a relatively high purity. Moreover, the hydrogen reduction product exhibited better saturation magnetization and lower coercivity.
- medium entropy alloy;
- sol–gel;
- co-precipitation;
- carbothermal;
- hydrogen reduction

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