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Effect of Fe/Ni ratio on amorphization, crystallization kinetics, and magnetic properties of FeNiSiBCuNb alloys
Journal of Non-Crystalline Solids ( IF 3.5 ) Pub Date : 2022-08-10 , DOI: 10.1016/j.jnoncrysol.2022.121842
Zhe Chen, Shujie Kang, Qianke Zhu, Kewei Zhang, Jifan Hu, Yong Jiang

In this work, the precipitation phase transformation, crystallization kinetics, and soft magnetic properties of (FexNi80-xSi9.5B9.5Cu1)0.97Nb0.03 (x = 36, 38, 40, 42, 44) alloys have been investigated systematically. It was found that the partial substitution of Fe for Ni can enhance the GFA, increasing the Trg from 0.507 to 0.527 for the best-performing alloy. With increasing annealing temperature, less α-Fe(Si), and more (Fe,Ni)Si and (Fe,Ni)B phase precipitates. The crystallization kinetics show that the peak temperature of the secondary phase transformation (α-Fe(Si)→γ(Fe,Ni)Si) is less sensitive to the heating rate. It is also found that structural relaxation of the amorphous system and consequential release of internal stress results in a decrease in Hc and an increase in µe. The minimum Hc values and maximum µe values for the alloys with x = 36, 38, 40, 42, and 44 were 0.14 A/m, 0.11 A/m, 0.23 A/m, 0.08 A/m, and 0.03 A/m, and 17,000, 14,600, 10,800, 12,700, and 16,500, respectively.



中文翻译:

Fe/Ni比对FeNiSiBCuNb合金非晶化、结晶动力学和磁性能的影响

在这项工作中,(Fe x Ni 80- x Si 9.5 B 9.5 Cu 1 ) 0.97 Nb 0.03 ( x = 36, 38, 40, 42, 44) 合金的析出相变、结晶动力学和软磁性能 已经系统地进行了调查。发现部分用 Fe 代替 Ni 可以提高 GFA,增加T rg从 0.507 到 0.527 是性能最好的合金。随着退火温度的升高,析出的α-Fe(Si)相越来越少,而析出的(Fe,Ni)Si和(Fe,Ni)B相越来越多。结晶动力学表明,二次相变的峰值温度(α-Fe(Si)→γ(Fe,Ni)Si)对加热速率不太敏感。还发现无定形系统的结构松弛和随之而来的内应力释放导致H c降低和µ e增加。x =合金的最小H c值和最大µ e 36、38、40、42 和 44 分别为 0.14 A/m、0.11 A/m、0.23 A/m、0.08 A/m 和 0.03 A/m,以及 17,000、14,600、10,800、12,700 和 16,500 .

更新日期:2022-08-10
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