Annealing process and magnetic properties of a new type Fe80.5Si7.2B12.3 amorphous alloy strip

doi:10.13251/j.issn.0254-6051.2021.01.020

Abstract

Abstract: Magnetic properties and loss characteristics of a new type Fe_80.5Si_7.2B_12.3 amorphous alloy strip under different annealing processes were studied and compared with the traditional iron-based amorphous alloy Fe₈₀Si₉B₁₁.The results indicate that the new type Fe_80.5Si_7.2B_12.3 amorphous alloy strip has a higher saturation magnetic induction intensity than that of Fe₈₀Si₉B₁₁,its magnetic flux density value is 1.607 T under the excitation magnetic field intensity of 3500 A/m.After annealing without magnetic field,its magnetic loss value is higher than that of Fe₈₀Si₉B₁₁,reaching 0.411 W/kg at f=50 Hz and B_m =1.4 T.After longitudinal magnetic annealing,its magnetic loss is 0.197 W/kg and basically equivalent to that of Fe₈₀Si₉B₁₁.After transverse magnetic annealing,its magnetic loss is only 0.175 W/kg,lower than that of Fe₈₀Si₉B₁₁,while the initial permeability and constant permeability are better than that of Fe₈₀Si₉B₁₁.The optimal annealing temperature range (360-400 ℃) of the new type Fe_80.5Si_7.2B_12.3 amorphous alloy strip is equivalent to that of Fe₈₀Si₉B₁₁.

Key words: high saturation magnetic induction, amorphous alloy, magnetic field annealing, soft magnetic property, magnetic loss

CLC Number:

TG113.22⁺5

Song Su, Chen Wenzhi, Zhang Guangqiang, Zheng Wei, Zhang Qian, Xing Yanxing, Zhou Shaoxiong. Annealing process and magnetic properties of a new type Fe_80.5Si_7.2B_12.3 amorphous alloy strip[J]. Heat Treatment of Metals, 2021, 46(1): 104-108.

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Annealing process and magnetic properties of a new type Fe_80.5Si_7.2B_12.3 amorphous alloy strip

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