An Investigation on Magnetic Anisotropy Induced in Fe-Based Ribbons during Current Stress Annealing
Abstract: The mechanism of stress induced magnetic anisotropy is an important basic science problem which has been investigated extensively; currently, disputes still exist in the understanding about the mechanism of stress induced magnetic anisotropy. This paper studies the dynamic process that Fe73.5Cu1Nb3Si13.5B9 alloy ribbon (Fe-based alloy ribbon) prepared with single roll faster quenching is under the effect of stress that current annealing (current stress annealing ) induced magnetic anisotropy. We design a device which can monitor in-situ the length variation of Fe- based alloy ribbon during current stress annealing process and give a tracking measurement. The magnetic anisotropy field is obtained by the longitudinal curve of giant magneto-impedance. Analyze stress induced magnetic anisotropy field and the relationship between the thin belt elongation and annealing current, we know, under the action of applied stress 50 MPa, the annealing current density J = 45 A/mm2 is the critical point of ribbon creep. When the annealing current is less than the creep point, the anisotropy is not obvious; when greater than the point, the current stress annealing induced magnetic anisotropy field changes quickly, and the field increases linearly with the increase of the annealing current density.
文章引用: 赵 静 , 方允樟 , 何兴伟 , 肖 飞 , 陈 明 , 孟繁雪 , 杨晓红 , 潘日敏 (2015) FeCuNbSiB合金薄带电流应力退火感生磁各向异性的研究。 材料科学， 5， 55-61. doi: 10.12677/MS.2015.53008
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