Effect of AC Field Magnetic Treatment on Structure and Properties of Fe78Si9B13 Amorphous Alloy

被引:0
作者
Ma, Haijian [1 ]
Hu, Yihua [2 ]
Li, Guangxu [3 ]
Wang, Weimin [4 ]
机构
[1] School of Mechanical-Electrical and Vehicle Engineering, Weifang University, Weifang,261061, China
[2] H3C Technologies Co., Ltd, Beijing,100191, China
[3] School of Physical Science and Technology, Guangxi University, Nanning,530004, China
[4] Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials (Ministry of Education), Shandong University, Jinan,250061, China
来源
Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering | 2021年 / 50卷 / 07期
关键词
Electric impedance measurement - Silicon alloys - Silicon - Crystallization - Saturation magnetization - Amorphous alloys - X ray diffraction;
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摘要
The structure and properties of as-quenched (AQ) and alternating current magnetic field (ACMF) treated Fe78Si9B13 amorphous ribbons were investigated by XRD, DSC and VSM. The XRD and VSM results show that the nearest neighbor distance (d) and coercivity (Hc) of the ACMF treated samples first decrease and then increase with increasing alternating current, however, the saturation magnetization varies little with the alternating current. The changes of d and Hc are attributing to the interaction of inhomogeneous characteristics structures in present alloys on the structural magnetic relaxation process. The apparent activity energies, local activity energies and local Avrami exponents of AQ and ACMF treated samples deduced from DSC curves show that ACMF treatment increases the onset crystallization activity energy and local Avrami exponent and decreases the apparent growth activity energy of the crystallization reactions. The changes of crystallization behavior are ascribe to atomic pair ordering of the atomic clusters and diffusion of free volume resulted by the magnetic aftereffect. © 2021, Science Press. All right reserved.
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页码:2428 / 2434
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