Hf optimizes the glass forming ability and controls the crystallization behavior in Fe-rich Fe-B-Cu alloys
Hf optimizes the glass forming ability and controls the crystallization behavior in Fe-rich Fe-B-Cu alloys
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DOI：
10.1016/j.jnoncrysol.2019.119740
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发表时间：
2020
影响因子：
3.5
通讯作者：
G.T. Wang;L. Zhou;H. Yuan;L. Zheng;Y.Z. Yang
中科院分区：
文献类型：
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作者：
G.T. Wang;L. Zhou;H. Yuan;L. Zheng;Y.Z. Yang
富铁Fe-B-Cu系合金具有高磁导率(μe)、低矫顽力(Hc)、高饱和磁化强度(Ms)和低损耗成本(W)等优点，有望作为新型软磁材料应用于电子和信息领域。然而，其玻璃形成能力（GFA）较差且结构控制困难，阻碍了其产业化和应用的进展。因此，在Fe86B13Cu1-xHfx合金中引入过渡族和大原子尺寸元素Hf来部分取代晶种和团簇元素Cu，结果证明Hf对于完善GFA、增强热稳定性、改善结构控制和阻碍中间化合物具有积极作用。 Fe86B13Cu0.5Hf0.5和Fe86B13Cu0.4Hf0.6淬火薄带均表现出全非晶结构，且具有较低的Ms值，经过723K×10min退火后，后者合金在调整均匀的α-Fe/非晶复相结构方面表现出更好的结构控制。此外，通过施加1000Gs磁场的673K×60min的辅助退火工艺，可以将结晶Ms值提高到最大约208emu/g，并且将Hc值有效地从9.3A/m降低至2.3A/m。新开发的Fe-B-Cu-Hf系合金具有良好的软磁性能，在富铁合金领域的应用取得了加速进展。
The Fe-rich Fe-B-Cu system alloys are hopeful for the apply as a new type soft magnetic material in both electron and information fields because of its high permeability (μe), low coercivity (Hc), high saturation magnetization (Ms) and low loss cost (W). However, the poor glass forming ability (GFA) and difficult structure-controlled which hinder the progress of industrializations and applications. Therefore, the transition group and big atom size element Hf is introduced into Fe86B13Cu1-xHfxalloys for partially replacing of the seeds and clusters element Cu, the result proves that Hf plays a positive role in perfectingGFA, enhancing thermal stability, improving structure-controlled, and impeding intermediate compounds. Both Fe86B13Cu0.5Hf0.5and Fe86B13Cu0.4Hf0.6as-quenched ribbons exhibit an entire amorphous structure and have the lowMsvalues, after annealing by 723K× 10 min, the latter alloy shows a better structure-controlled on adjusting the uniform α-Fe/amorphous complex phase structure. In addition, the crystalizedMsvalue can be enhanced to the maximum of approximately 208 emu/g and theHcvalue is effectively decreased from 9.3 to 2.3 A/m by an auxiliary annealing process of 673K× 60 min applied the 1000 Gs magnetic field. The new developed Fe-B-Cu-Hf system alloys with good soft magnetic properties exhibit an acceleration applying progress in the Fe-rich alloys field.