Correlation between magnetic properties and crystallographic texture of silicon steel

Yonamine, T.; Landgraf, Fernando José Gomes

doi:10.1016/j.jmmm.2003.12.1220

Cited by 38 publications

(33 citation statements)

References 2 publications

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“…Deformation leads to a work hardening of the material due to an increase in the dislocation density and a reduction in their mobility, leading to a state of elevated residual stress in the lattice. 7 This was discussed previously 8 in a direct comparison between H c and the measured hardness of deformed electrical steel and has been considered in depth by Cullity. 1 In the microstructure, one observes changes in the crystallographic texture 9 and an increase of the crystalline orientations, which are unfavorable for the magnetization, and this is reflected in a reduction in B 50 .…”

mentioning

confidence: 83%

Evolution of magnetic properties and crystallographic texture in electrical steel with large plastic deformation

Fukuhara

Yonamine

Landgraf

et al. 2011

Journal of Applied Physics

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Angle dependence of the switching field of recording media at finite temperatures J. Appl. Phys. 110, 103906 (2011) Magnetic and dielectric properties of Eu-doped BiFeO3 nanoparticles by acetic acid-assisted sol-gel method J. Appl. Phys. 110, 103905 (2011) Magnetic study of the Co-MCM-41 catalyst: Before and after reaction J. Appl. Phys. 110, 103904 (2011) Additional information on J. Appl. Phys. Deformation leads to a hardening of steel due to an increase in the density of dislocations and a reduction in their mobility, giving rise to a state of elevated residual stresses in the crystal lattice. In the microstructure, one observes an increase in the contribution of crystalline orientations which are unfavorable to the magnetization, as seen, for example, by a decrease in B 50 , the magnetic flux density at a field of 50 A/cm. The present study was carried out with longitudinal strips of fully processed non-oriented (NO) electrical steel, with deformations up to 70% resulting from cold rolling in the longitudinal direction. With increasing plastic deformation, the value of B 50 gradually decreases until it reaches a minimum value, where it remains even for larger deformations. On the other hand, the coercive field H c continually increases. Magnetometry results and electron backscatter diffraction results are compared and discussed.

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mentioning

confidence: 83%

Evolution of magnetic properties and crystallographic texture in electrical steel with large plastic deformation

Fukuhara

Yonamine

Landgraf

et al. 2011

Journal of Applied Physics

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“…The proposed approach is nondestructive, is not affected by the geometry of the sample, is easy to use and interpret, and can assess the local magnetic easy direction in areas of just 4.5 cm 2 . In addition to being destructive, the Epstein and small single sheet-based approaches require sample sizes from 84 to 93 cm 2 and 25 to 1296 cm 2 , respectively [20,22,25,31,32]. These approaches can also be used in nondestructive tests; However, the test areas of the samples under study should have larger dimensions.…”

Section: Methodsmentioning

confidence: 99%

“…In the case of industrial transformer steel sheets, the Epstein frame approach is based on destructive batch tests [12,13,25]. Emura et al (2001) [12] studied the anisotropy of the magnetic properties of a 2% silicon steel.…”

Section: Introductionmentioning

confidence: 99%

Detection of the Magnetic Easy Direction in Steels Using Induced Magnetic Fields

Silva

Paula

Leite

et al. 2016

Metals

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Conventional manufacturing processes cause plastic deformation that leads to magnetic anisotropy in processed materials. A deeper understanding of materials characterization under rotational magnetization enables engineers to optimize the overall volume, mass, and performance of devices such as electrical machines in industry. Therefore, it is important to find the magnetic easy direction of the magnetic domains in a simple and straightforward manner. The Magnetic easy direction can be obtained through destructive tests such as the Epstein frame method and the Single Sheet Tester by taking measurements in regions of irreversible magnetization usually called domains. In the present work, samples of rolled SAE 1045 steel (formed by perlite and ferrite microstructures) were submitted to induced magnetic fields in the reversibility region of magnetic domains to detect the magnetic easy direction. The magnetic fields were applied to circular samples with different thicknesses and angles varying from 0 • to 360 • with steps of 45 • . A square sample with a fixed thickness was also tested. The results showed that the proposed non-destructive approach is promising to evaluate the magnetic anisotropy in steels independently of the geometry of the sample. The region studied presented low induction losses and was affected by magnetic anisotropy, which did not occur in other works that only took into account regions of high induction losses.

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“…In order to estimate the J s value of a material, an empirical formula has been proposed under the condition that the weight percentage of alloy components such as Al and Si are known [10]. According to [11,12], the following relation has been proposed: (16) where %Al and %Si are the Al and Si contents.…”

Section: Estimation Of Magnetic Saturation Induction Using the Materimentioning

confidence: 99%

Extrapolating B-H Curve Data using Common Electrical Steel Characteristics for High Magnetic Saturation Applications

Chai¹,

Kim²,

Kim³

et al. 2015

Journal of Magnetics

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In this paper, an adequate B-H curve extrapolation method is proposed and its reliability is verified through experiments. A method is developed to estimate the magnetic saturation induction from the density of the lamination core and electrical resistivity. The magnetic saturation induction of electrical steels measured using a vibration sample magnetometer are compared with the analytical results to validate the accuracy of the proposed estimation method. It is found that the predicted error in the magnetic saturation induction of the electrical steels are approximately 1.2% when the proposed method is used. The performance of interior permanent magnet synchronous motors that applies the proposed method are evaluated via 2D nonlinear finite element analysis and through experiments. Based on the obtained results, the extrapolated B-H curves from the estimated saturation induction can be used for various analyses in saturation region.

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Correlation between magnetic properties and crystallographic texture of silicon steel

Cited by 38 publications

References 2 publications

Evolution of magnetic properties and crystallographic texture in electrical steel with large plastic deformation

Evolution of magnetic properties and crystallographic texture in electrical steel with large plastic deformation

Detection of the Magnetic Easy Direction in Steels Using Induced Magnetic Fields

Extrapolating B-H Curve Data using Common Electrical Steel Characteristics for High Magnetic Saturation Applications

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