Sn、Bi 和 In 对 Fe-B-C-Si-P-Cu-M 纳米晶合金磁性能和微观结构的影响

IF 3.2 3区材料科学 Q1 MATERIALS SCIENCE, CERAMICS

Journal of Non-crystalline Solids Pub Date : 2024-10-31 DOI:10.1016/j.jnoncrysol.2024.123277

Jili Jia, Lingxiang Shi, You Wu, Ranbin Wang, Wenhui Guo, Yang Shao, Na Chen, Kefu Yao

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引用次数: 0

摘要

本文研究了 Sn、Bi 和 In 微合金元素对 Fe83.1-x-y-zB9.25C3Si3P0.9Cu0.75SnxBiyInz (x, y, z = 0∼0.2) 纳米晶合金磁性能和微观结构的影响。结果表明，由于 Bi 和 In 与铁的正混合焓（ΔHmix）及其原子的快速扩散，微量添加 Bi 和 In 可促进α-铁纳米晶体的形成并降低生长活化能。In 和 Bi（尤其是 In）的加入对 α-Fe 沉淀的促进作用增加了结晶体积分数 (vcr)，从而提高了纳米晶合金的磁通密度 (Bs)。与 Fe83.1B9.25C3Si3P0.9Cu0.75 纳米晶合金相比，Fe83B9.25C3Si3P0.9Cu0.75Bi0.1、Fe83B9.25C3Si3P0.9Cu0.75In0.1 和 Fe82.9B9.25C3Si3P0.9Cu0.本研究结果表明，微量添加与铁具有正混合焓的低熔点元素可显著改善纳米晶合金的磁性能，这在高频电子仪器中具有巨大的应用潜力。这为设计高性能软磁纳米晶合金提供了一种新方法。

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Effect of Sn, Bi and In on the magnetic properties and microstructure of Fe-B-C-Si-P-Cu-M nanocrystalline alloys

In this work, the effects of Sn, Bi and In microalloying elements on the magnetic properties and microstructure of Fe_83.1-x-y-zB_9.25C₃Si₃P_0.9Cu_0.75Sn_xBi_yIn_z (x, y, z = 0∼0.2) nanocrystalline alloys were investigated. It shows the microaddition of Bi and In could facilitate the formation of α-Fe nanocrystals and reduce the growth activation energy, due to their positive mixing enthalpies (ΔH_mix) with Fe and rapid diffusion of their atoms. The promoting effects of In and Bi (especially In) addition on α-Fe precipitation increased the crystallization volume fraction (v_cr) and thus enhanced the magnetic flux density (B_s) of nanocrystalline alloys. Compared with Fe_83.1B_9.25C₃Si₃P_0.9Cu_0.75 nanocrystalline alloy, the B_s of Fe₈₃B_9.25C₃Si₃P_0.9Cu_0.75Bi_0.1, Fe₈₃B_9.25C₃Si₃P_0.9Cu_0.75In_0.1, and Fe_82.9B_9.25C₃Si₃P_0.9Cu_0.75Bi_0.1In_0.1 alloys, annealed with same method, increased from 1.810 T to 1.831 T, 1.837 T and 1.849 T, respectively, together with relatively low coercivity (H_c). The present results indicate that microaddtion of low melting point element possessing positive mixing enthalpies with Fe could significantly improve the magnetic properties of the nanocrystalline alloys, which possess great potentials of application in high frequency electronic apparatus. It offered a new approach for design high performance soft magnetic nanocrysalline alloys.

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来源期刊

Journal of Non-crystalline Solids 工程技术-材料科学：硅酸盐

CiteScore

6.50

自引率

11.40%

发文量

576

审稿时长

35 days

期刊介绍： The Journal of Non-Crystalline Solids publishes review articles, research papers, and Letters to the Editor on amorphous and glassy materials, including inorganic, organic, polymeric, hybrid and metallic systems. Papers on partially glassy materials, such as glass-ceramics and glass-matrix composites, and papers involving the liquid state are also included in so far as the properties of the liquid are relevant for the formation of the solid. In all cases the papers must demonstrate both novelty and importance to the field, by way of significant advances in understanding or application of non-crystalline solids; in the case of Letters, a compelling case must also be made for expedited handling.