Preparation of FeCoNi medium entropy alloy from Fe^(3+)-Co^(2+)-Ni^(2+)solution system  

作　　者：Zongyou Cheng Qing Zhao Mengjie Tao Jijun Du Xingxi Huang Chengjun Liu 

机构地区：[1]Key Laboratory for Ecological Metallurgy of Multimetallic Mineral(Ministry of Education),Northeastern University,Shenyang 110819,China [2]School of Metallurgy,Northeastern University,Shenyang 110819,China [3]Engineering Research Center of Frontier Technologies for Low-carbon Steelmaking(Ministry of Education),Shenyang 110819,China

出　　处：《International Journal of Minerals,Metallurgy and Materials》2025年第1期92-101,共10页矿物冶金与材料学报（英文版）

基　　金：financially supported by the National Natural Science Foundation of China(Nos.52074078 and 52374327);the Applied Fundamental Research Program of Liaoning Province,China(No.2023JH2/101600002);the Liaoning Provincial Natural Science Foundation,China(No.2022-YQ-09);the Shenyang Young Middle-Aged Scientific and Technological Innovation Talent Support Program,China(No.RC220491);the Liaoning Province Steel Industry-University-Research Innovation Alliance Cooperation Project of Bensteel Group,China(No.KJBLM202202);the Fundamental Research Funds for the Central Universities,China(Nos.N2201023 and N2325009)。

摘　　要：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 coprecipitation 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℃.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.

关 键 词：medium entropy alloy SOL-GEL CO-PRECIPITATION carbothermal hydrogen reduction 

分 类 号：TG139[一般工业技术—材料科学与工程]