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
 Yoshizawa, Y., Oguma, S. and Yamauchi, K. (1988) New Fe-based soft magnetic alloys composed of ultrafine grain structure. Journal of Applied Physics, 64, 6044-6046.
 Herzer, G. (1992) Nanocrystalline soft magnetic materials. Journal of Magnetism and Magnetic Materials, 112, 258- 262.
 Yoshizawa, Y. and Yamauchi, K. (1989) Effects of magnetic field annealing on magnetic properties in ultrafine crystalline Fe-Cu-Nb-Si-B alloys. IEEE Transactions on Magnetics, 25, 3324-3326.
 Fukunaga, H., Furukawa, N., Tanaka, H. and Na-kano, M. (2000) Nanostructured soft magnetic material with low loss and low permeability. Journal of Applied Physics, 87, Article ID: 7103.
 Herzer, G. (1994) Creep induced magnetic anisotropy in nanocrystalline Fe-Cu-Nb-Si-B alloys. IEEE Transactions on Magnetics, 30, 4800-4802.
 Hofman, B. and Kronmüller, H. (1992) Stress-induced magnetic anisotropy in nanocrystalline FeCuNbSiB alloy. Jour- nal of Magnetism and Magnetic Materials, 152, 91-98.
 Ohnuma, M., Hono, K., Yanai, T., Fukunaga, H. and Yoshizawa, Y. (2005) Origin of the magnetic aniso-tropy induced by stress annealing in Fe-based nanocrystalline alloy. Applied Physics Letters, 86, Article ID: 152513.
 方允樟, 郑金菊, 施方也, 吴锋民, 孙怀君, 林根金, 杨晓红, 满其奎, 叶方敏 (2008) Fe基合金应力退火感生磁各向异性机理的AFM研究. 中国科学(E辑: 技术科学), 3, 428-441.
 Hofmann, B. and Kronmüller, H.J. (1996) Stress-induced magnetic anisotropy in nanocrystalline FeCuNbSiB alloy. Journal of Magnetism and Magnetic Materials, 152, 91-98.
 Herzer, G. (1994) Magnetic field induced anisotropy in nanocrystalline Fe-Cu-Nb-Si-B alloys. Materials Science and Engineering: A, 181-182, 876-879.
 Ohnuma, M., Hono, K., Yanai, T., Fukunaga, H. and Yoshizawa, Y. (2003) Direct evidence for structural origin of stress-induced magnetic anisotropy in Fe–Si–B–Nb–Cu nanocrystalline alloys. Applied Physics Letters, 83, Article ID: 2859.
 Ohnuma, M., Hono, K., Yanai, T., Fukunaga, H., Yoshizawa, Y. and Herzer, G. (2010) Journal of Applied Physics, 108, Article ID: 093927.
 Ohnuma, M., Herzer, G., Kozikowski, P., Polak, C., Budinsky, V. and Koppoju, S. (2012) Structural anisotropy of amorphous alloys with creep-induced magnetic anisotropy. Acta Materialia, 60, 1278-1286.
 杨介信, 杨夑龙, 陈国, 等 (1998) 一种新型的纵向驱动巨磁致阻抗效应. 科学通报, 10, 1051-1053.
 Kraus, L., Zaveta, K., Heczko, O., Duhaj, P., Vlasak, G. and Schnaider, T. (1992) Magnetic anisotropy in as-quenched and stress-annealed amorphous and nanocrystalline Fe73.5Cu1Nb3Si13.5B9 alloys. Journal of Magnetism and Magnetic Materials, 112, 275-277.