Acta Metall Sin  1992, Vol. 28 Issue (6): 76-84    DOI:

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THREE NEW Fe-BASED MICROCRYSTALLINE ALLOYS WITH SUPERIOR MAGNETIC PROPERTIES

ZHANG Yanzhong;NIAN Suzhen Shanghai Iron and Steel Research Institure Correspondent; senior; engineer; Shanghai Iron and Steel research Institute; Shanghai 200940

ZHANG Yanzhong;NIAN Suzhen Shanghai Iron and Steel Research Institure Correspondent; senior; engineer; Shanghai Iron and Steel research Institute; Shanghai 200940. THREE NEW Fe-BASED MICROCRYSTALLINE ALLOYS WITH SUPERIOR MAGNETIC PROPERTIES. Acta Metall Sin, 1992, 28(6): 76-84.

Abstract References Related Articles Recommended Metrics Download:  PDF(992KB)  Export:  BibTeX | EndNote (RIS)       Abstract  Three new Fe-based microcrystalline alloys, i. e., Fe_(73.1)Cu_(1.2)Nb_(3.2)Si_(12.5)B_(10),Fe_(73)Cu_1Nb_(1.5)Mo_2Si_(12.5)B_(10) and Fe_(73)Cu_1Zr_3C_(0.5)Si_(12.5)B_(10), were developed with superior magneticproperties, e. g., high relative initial permeability of μ_i≥5×10~4, low coercivity of H_c≤1.0A/ m, high effective permeability and low core loses in a considerable wide frequency rangeand high pulse-magnetic permeability under narrow pulse. the optimum value of relative ef-fective permeability, μ_5 is 16×104 under condition of f=1 kHz and H_m=0.4 A / m. Theoptimum values of core loss reach 57.9, 30.2 and 68 W / kg under condition of f=50, 100, 100Hz and B_m=0.5, 0.2, 0.3 T, respectively, These three alloys have superior stability of magneticproperties. Initial permeability may be not chaned duing heating at 130℃ up to 216 h. Themain crystalline phase is ordered phase Fe_(75+y)Si_(25-y) which is ultrafine particles of average size10--20 nm. Key words:  microcrystalline alloy      relative initial permeability      effective permeability      coercivity      core lose      ultrafine particle      Received:  18 June 1992      Service E-mail this article Add to citation manager E-mail Alert RSS Collect articles（0） Articles by authors URL:  https://www.ams.org.cn/EN/     OR     https://www.ams.org.cn/EN/Y1992/V28/I6/76 1 张延忠.北京科技大学博士学位论文,1988; 2 Yoshizawa Y, Oguma S, Yamauchi K. J Appl Phys, 1988; 64: 6044 3 Yoshizawa Y, Yamauchi K. IEEE Trans Magn, 1984; MAG--25: 3324 4 张延忠.科学通报,1990;35:1180 5 张延忠,沈政生,年素珍.科学通报,1990;35:1540 6 李有良,康梦华,张俊海.金属材料研究,1989;15(3) :1 7 Herzer G. IEEE Trans Magn, 1989; MAG--25: 3327 8 stearns M B. Phys Rev, 1963: 129: 1136 9 Gonser U, Ghafari M, wagner H G. J Magn Magn Mater, 1978; 8: 175 10 Bozorth R M. Ferromagnetism. 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