High performance Fe-based nanocrystalline alloys with excellent thermal stability
High performance Fe-based nanocrystalline alloys with excellent thermal stability
复制标题
具有优异热稳定性的高性能铁基纳米晶合金
DOI：
10.1016/j.jallcom.2018.10.319
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发表时间：
2019-03
影响因子：
6.2
通讯作者：
Yong Yang
中科院分区：
文献类型：
--
作者：
Tao Liu;Fucheng Li;Anding Wang;Lei Xie;QuanFeng He;Junhua Luan;Aina He;Xinmin Wang;C.T. Liu;Yong Yang
铁基合金是一种重要的软磁材料，在电力变压器、电机和变流器等与能源相关的工业应用中发挥着至关重要的作用。然而，软磁和饱和磁化强度之间的权衡一直阻碍着新一代铁基软磁材料的发展。在这项工作中，我们展示了一种从边缘玻璃成型器中获得纳米结构铁基合金的简便方法，这种纳米结构表现出核壳状的纳米结构，以及热退火后BS、磁导率(μe)和硬度的协同增加，导致了BS>； 1.83 T，μe∼25000和∼15 Gpa的超高硬度的独特组合。在综合磁/力学性能方面，纳米结构铁基合金的性能优于迄今报道的各种铁基软磁合金。此外，与现有的高性能软磁铁基纳米晶合金相比，我们的铁基纳米晶合金中的核壳状纳米结构表现出良好的热稳定性，这为未来大规模工业生产提供了更大的时间窗口。
Fe-based alloys are an important soft magnetic material that plays a pivotal role in a variety of energy-related industrial applications, such as electric transformers, motors and converters. However, the trade-off between magnetic softness and saturation magnetization (Bs) has been hindering the development of next-generation Fe-based soft magnetic materials. In this work, we demonstrate a facile route to obtain nanostructured Fe-based alloy out of a marginal glass former, which exhibits a core-shell like nanostructure and a synergetic increase ofBs, magnetic permeability (μe) and hardness upon thermal annealing, giving rise to a unique combination ofBs> 1.83 T,μe∼25000 and ultrahigh hardness of ∼15 GPa. In terms of the combined magnetic/mechanical properties, the nanostructured Fe-based alloy outperforms the variety of Fe-based soft magnetic alloys hitherto reported. Furthermore, compared to the existing high performance soft magnetic Fe-based nanocrystalline alloys, the core-shell like nanostructure in our Fe-based nanocrystalline alloy displays an excellent thermal stability, which offers a large time window which would facilitate materials processing for future large-scale industrial production.
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影响因子：
3.2
作者：
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通讯作者：
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影响因子：
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