Modelling the angular dependence of magnetic properties of a fully processed non-oriented electrical steel

Landgraf, Fernando José Gomes; Yonamine, T.; Emura, M.; Cunha, Marco Antônio da

doi:10.1016/s0304-8853(02)00827-2

Cited by 33 publications

(27 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Other studies also detected the change in the induced magnetic field due to the rotation of the samples, indicating that magnetization curves suffer interference from the plastic deformation, which causes magnetic anisotropy [17,20,27,28,32,41]. Figure 4 also shows that the measures acquired at the center of the samples have peak values for angles of around 225 • .…”

Section: Resultsmentioning

confidence: 85%

“…Landgraf et al [32] also observed in non-oriented steels the presence of the most unfavorable magnetic properties for rotation angles between 45 • and 60 • . Emura, Landgraf and co-workers [12,20,32] • from the rolling direction in their analysis with the applied field in hysteresis losses in the high induction region.…”

Section: Resultsmentioning

confidence: 92%

“…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%

“…The region of reversibility of the magnetic domain corresponds to the magnetized region where the domains are randomly oriented, and the application of an external magnetic field does not cause its permanent magnetization, perpetual motion, or a residual field; and therefore, the demagnetization of the material is unnecessary [34][35][36][37]. This region also belongs to the one of low induction losses and these losses are related to the energy dissipated by the displacement of the walls of the magnetic domains [20,32,36]. Landgraf et al [32] associated the area between the two induction lines of maximum permeability of a magnetization curve of a material as hysteresis losses of low induction and the complementary area above and below those lines as hysteresis losses of high induction.…”

Section: Methodsmentioning

confidence: 99%

“…This region also belongs to the one of low induction losses and these losses are related to the energy dissipated by the displacement of the walls of the magnetic domains [20,32,36]. Landgraf et al [32] associated the area between the two induction lines of maximum permeability of a magnetization curve of a material as hysteresis losses of low induction and the complementary area above and below those lines as hysteresis losses of high induction. Here, the measurements were carried out in the linear region and low induction one of the magnetization curve, and an external magnetic field value of 188 A/m was found to be the most suitable for studying the magnetization easy direction.…”

Section: Methodsmentioning

confidence: 99%

See 4 more Smart Citations

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

Silva

Paula

Leite

et al. 2016

Metals

View full text Add to dashboard Cite

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.

show abstract

Section: Resultsmentioning

confidence: 85%

Section: Resultsmentioning

confidence: 92%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

See 3 more Smart Citations

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

Silva

Paula

Leite

et al. 2016

Metals

View full text Add to dashboard Cite

show abstract

The Effects of Deformation Conditions and Microstructural Features on Typical Textures of a Non-oriented Electrical Steel in Electrically Assisted Forming

2021

Metall Mater Trans A

View full text Add to dashboard Cite

The effects of deformation conditions on typical textures and the relationship between microstructural features and typical textures in a non-oriented electrical steel during electrically assisted forming were investigated. Specimens processed by electrically assisted tensile forming were measured with electron back-scatter diffraction (EBSD). Results show that Joule heat reduces cube, Goss texture, and h-fiber but enhances rotated cube texture and c-fiber. A stronger cooling rate brings a remarkable decrease of cube texture and c-fiber and an increase of rotated cube and h-fiber. It is concluded that electric current itself enhances cube texture and Goss texture. The variations of grain size and number fraction of rotated cube and Goss grains contribute to the volume fraction variations of rotated cube and Goss texture. The increases of the sum of R3 and R9 grain boundaries, grain boundary curvature, and microstructural defects in Goss grains are responsible for the enhancement of Goss texture.

show abstract

Some Aspects of Magnetic Anisotropy in Non-Grain-Oriented (NGO) Electrical Steels

Hutchinson,

Nyyssönen,

Brodefalk

et al. 2023

JOM

View full text Add to dashboard Cite

Modelling the angular dependence of magnetic properties of a fully processed non-oriented electrical steel

Cited by 33 publications

References 6 publications

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

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

The Effects of Deformation Conditions and Microstructural Features on Typical Textures of a Non-oriented Electrical Steel in Electrically Assisted Forming

Some Aspects of Magnetic Anisotropy in Non-Grain-Oriented (NGO) Electrical Steels

Contact Info

Product

Resources

About