Soft magnetic Fe25Co25Ni25(B, Si)25 high entropy bulk metallic glasses
Soft magnetic Fe25Co25Ni25(B, Si)25 high entropy bulk metallic glasses
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软磁Fe25Co25Ni25(B,Si)25高熵块体金属玻璃
DOI：
10.1016/j.intermet.2015.06.015
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发表时间：
2015-11-01
期刊：
影响因子：
4.4
通讯作者：
Zhang, Wei
中科院分区：
文献类型：
--
作者：
Qi, Tianlong;Li, Yanhui;Zhang, Wei
研制出具有优异软磁性能和力学性能的新型Fe25CO25Ni25(E, Si)（25）高熵体金属玻璃（he - bmg）。he - bmg具有较高的玻璃化转变温度和较宽的过冷液区WO。采用铜模铸造方法制备了Fe25Co25Ni25(BoiSio(3))（25）合金直径达1.5 mm的全玻璃棒。he - bmg的屈服强度为-3624 MPa，塑性应变为-3.1%，优于已开发的he - bmg。合金还具有良好的软磁性能，饱和磁化强度高达-0.87 T，矫顽力低至-1.1 A/m， 1 kHz时有效磁导率高达-19,800。这些优异性能的结合使新的he - bmg在科学和工程应用方面都有良好的前景。(C) 2015 Elsevier Ltd.版权所有。
New Fe25CO25Ni25(E, Si)(25) high entropy bulk metallic glasses (HE-BMGs) with superior soft magnetic and mechanical properties are developed. The HE-BMGs show high glass transition temperature and wide supercooled liquid region WO. Fully glassy rods with diameters up to 1.5 mm were fabricated for the Fe25Co25Ni25(BoiSio(3))(25) alloy by copper mold casting method. The HE-BMGs exhibit high yield strength of -3624 MPa with large plastic strain of -3.1%, which is superior to the pre-developed HE-BMGs. The alloys also possess good soft magnetic properties, i.e., rather high saturation magnetization of -0.87 T, low coercive force of -1.1 A/m, and high effective permeability at 1 kHz of -19,800. This combination of these excellent properties gives the new HE-BMGs good promise for both scientific and engineering applications. (C) 2015 Elsevier Ltd. All rights reserved.