Effect of annealing temperature on magnetic properties of cold rolled high silicon steel thin sheet

Liang, Yongfeng; Ye, F.; Lin, Junpin; Wang, Y.L.; Chen, G.L.

doi:10.1016/j.jallcom.2009.10.118

Cited by 124 publications

(39 citation statements)

References 22 publications

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“…In recent years, the toughness and ductility of high-silicon steel have been improved through the principles of deformationinduced softening and annealing-induced hardening in ordered solid solutions [14]. High-silicon steel sheets with superior magnetic properties have been successfully fabricated through hot rolling combined with warm and cold rolling, as well as appropriate intermediate heat treatment [15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

“…Scholars generally acknowledge the existence of an optimum grain size for minimizing core loss; here, optimum grain size decreases as resistivity decreases or frequency increases or the thickness of the steel sheet increases [21]. The effect of annealing temperature on the magnetic properties of cold-rolled highsilicon steel has been previously studied [15,16], and researchers mainly consider the influence of grain size but ignore the role of texture. Refs.…”

Section: Introductionmentioning

confidence: 99%

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Effect of texture and grain size on the magnetic flux density and core loss of cold-rolled high silicon steel sheets

Qin

Yang

Mao

et al. 2015

Journal of Magnetism and Magnetic Materials

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effect of texture and grain size on the magnetic flux density and core loss of cold-rolled high silicon steel sheets

Qin

Yang

Mao

et al. 2015

Journal of Magnetism and Magnetic Materials

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“…Therefore the annealing temperature for a 0.30 mm thick cold rolled Fe-6.5%Si sheet should be lower than 1273 K to avoid a large grain size for frequencies above 5 kHz. The result is different from those of the 0.05 mm thick cold rolled sheet [10]. This is thought to be due to the fact that the eddy current losses decrease with the thickness, but increase rapidly in approximate proportion to the square of the frequency [15].…”

Section: Resultsmentioning

confidence: 62%

“…Recently, we have studied the effect annealing temperature on magnetic properties of cold rolled Fe-6.5%Si alloy with a thickness of 0.05 mm. The results showed that a higher annealing temperature was beneficial for Dc properties, while the Ac properties for the high frequency (>10 kHz) reached a maximum at 1373 K [10].…”

Section: Introductionmentioning

confidence: 97%

Effect of Annealing Temperature on Soft Magnetic Properties of Cold Rolled 0.30 mm Thick Fe-6.5wt.%Si Foils

Fang¹,

Lin²,

Liang³

et al. 2011

Journal of Magnetics

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0.30 mm thick and 90 mm wide thin foils made of Fe-6.5wt.%Si alloy were successfully fabricated by traditional rolling. The as-rolled sheets had good shapes and shining metal luster. The effects of annealing temperature on the magnetic properties of the sheets were investigated. Excellent Dc properties (H c : 11.55 A/m, µ m : 23710, and B s : 1.439 T) were obtained at an annealing temperature of 1453 K for 1.5 h. At low frequencies (≤ 1 kHz), heat treatment temperature has little effect on iron loss which remained at the level of 9.8 W/kg. Annealing at 1273 K for 1.5 h is optimum for frequencies above 5 kHz.

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“…In order to avoid room-temperature embrittlement, various techniques have been developed, such as chemical vapor deposition [6], hot dipping [7], spray forming [8][9][10], rapid solidification [11][12][13], and direct powder rolling [14]. Moreover, a hot-warm-cold rolling method combined with proper heat treatments was reported for the fabrication of sheets of thickness 0.03-0.05 mm [15][16][17]. As indicated in previous reports, the rolling parameters, including temperature, rolling reduction, and strain rate, control the flow behavior [18] and microstructural evolution [19].…”

Section: Introductionmentioning

confidence: 99%

Flow Behavior Characteristics and Processing Map of Fe-6.5wt. %Si Alloys during Hot Compression

Wen

Han

Zhang

et al. 2018

Metals

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Abstract:The flow behavior of . %Si alloys during hot compression was investigated at temperatures 650-950 • C and strain rates 0.01-10 s −1 . The results showed that the flow stress depended distinctly on the deformation temperatures and strain rates. The flow stress and work hardening rate increased with the decrease of temperature and the increase of strain rate. The activation energy under all the deformation conditions was calculated to be 410 kJ/mol. The constitutive equation with hyperbolic sine function and Zener-Hollomon parameter was developed. The peak stress, critical stress, and steady-state stress could be represented as σ = A + Bln(Z/A). Dynamic recrystallization occurred under the deformation conditions where the values of Z were lower than 10 20 . Processing maps were established to optimize the processing parameters. The power dissipation efficiency decreased in the high temperature and low strain rate region, increased in the high temperature and high strain rate region, and remained unchanged in other regions with the increase of true strain. Furthermore, the unstable area expanded. The true strain of 0.7 was the optimum reduction according to the processing map. Based on the analysis of surface quality, microstructures, and ordered structures, the optimized processing parameters for the Fe-6.5wt. %Si alloys were the temperature and strain rate of higher than 900 • C and 0.01-10 s −1 , respectively, or 800-900 • C and lower than 0.4 s −1 , respectively.

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Effect of annealing temperature on magnetic properties of cold rolled high silicon steel thin sheet

Cited by 124 publications

References 22 publications

Effect of texture and grain size on the magnetic flux density and core loss of cold-rolled high silicon steel sheets

Effect of texture and grain size on the magnetic flux density and core loss of cold-rolled high silicon steel sheets

Effect of Annealing Temperature on Soft Magnetic Properties of Cold Rolled 0.30 mm Thick Fe-6.5wt.%Si Foils

Flow Behavior Characteristics and Processing Map of Fe-6.5wt. %Si Alloys during Hot Compression

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