2D magnetization of grain-oriented 3%-Si steel under uniaxial stress

Permiakov, Viatcheslav; Dupré, Luc; Pulnikov, Aleksandr; Melkebeek, Jan

doi:10.1016/j.jmmm.2004.11.558

Cited by 9 publications

(11 citation statements)

References 12 publications

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“…9,27,33,37,38,40,43) This aspect is non-trivial: the core loss or iron loss, during electricity generation itself, was estimated, 9) in 1990, at 400 billion kWh. Degradation in the magnetic properties in a transformer core remains a real challenge to the technological society.…”

Section: Discussionmentioning

confidence: 99%

“…Of course a range of exhaustive literature exists: mainly correlating the strain aspect with magnetic properties. 34,36,38,40,41,43,47,50) There are two problems: rarely strain and magnetic properties have the same scaling, 41,42,47) and the strains are often local and hence their effect on the bulk magnetic behavior can be diluted. This is where the present study becomes effective.…”

Section: Discussionmentioning

confidence: 99%

“…9,19,21,[25][26][27][28][29][30][31][32] These, in turn, may affect the magnetic properties. 18,19,22,23,27,[33][34][35][36][37][38][39][40][41][42][43][44] To a transformer manufacturer and end-user, hysteresis loss and permeability are the two important properties. It has been reported 4,33,37,39,40,43) that tensile residual stresses can even be beneficial: depending on the specimen orientation and the magnitude of such stresses; 37,40,43) while compressive stresses are detrimental for hysteresis loss in a typical CRGO lamination.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Magnetic Properties in Deformed Grain Oriented Electrical Steel: On the Role of Strain Hardening Exponent and Microstructural Developments

Shekhawat

Vadavadagi

Hiwarkar³

et al. 2012

ISIJ Int.

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High permeability commercial CRGO, cold rolled grain oriented steel was subjected to uni-axial tensile strain in three principal orientations: (110) <001>, (110) < 10> and (110)< 11>. The samples exhibited remarkably different stress-strain behavior. The numerical values of the strain hardening exponent, n, largely determined the degradation in magnetic properties: namely increase in Hysteresis loss (H) and drop in Permeability (μ). Changes in magnetic properties were also correlated with microstructural observations: misorientation and dislocation density developments, relative recovery, residual strain and deviation from ideal <001>. The study established constitutive relationships between degradation in magnetic properties and various parameters of the deformed microstructures.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Magnetic Properties in Deformed Grain Oriented Electrical Steel: On the Role of Strain Hardening Exponent and Microstructural Developments

Shekhawat

Vadavadagi

Hiwarkar³

et al. 2012

ISIJ Int.

View full text Add to dashboard Cite

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“…At the same tensile stress, the alternating loss in the 90-degree directions exhibits very high value. This can be explained by the fact that an extra energy is required to maintain the alternating magnetization in the 90-degree, while the applied tensile stress in the 0-degree results in a partial elimination of the favourable domains [12].…”

Section: Discussionmentioning

confidence: 99%

Measurement Techniques for Magnetic Characterization of Fe-Si Alloys

Permiakov

Dupré

Melkebeek

et al. 2006

2006 IEEE Instrumentation and Measurement Technology Conference Proceedings

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Standard measurements techniques for magnetic characterization of Fe-Si steels are agreed upon in IEC 60404-2 and IEC 60404-3. Unfortunately, the standard methods are not capable to characterize the behaviour of magnetic materials under various complex magnetomechanical conditions, such as rotational magnetization, compressive and tensile stresses and plastic strains. Based on the standard measurement techniques, a more complex magnetic characterization of Fe-Si alloys at different conditions can be developed for better understanding of energy loss, and generally, energy conversion in electromagnetic devices. In this work, recent achievements in the methodical characterization of Fe-Si alloys at various combinations of magnetic conditions at externally applied uniaxial mechanical load are described.

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“…Some research showed that for CGO electrical steel the hard magnetization direction was not perpendicular to the rolling direction, and they proposed elliptic curve models to simulate the steel magnetization, but did not achieve ideal simulation results [12][13][14][15] . So far, multidimensional magnetic measuring instruments have been developed, which can obtain relatively accurate magnetic measurements, but its application is limited to specialized research institutions, and data processing is discommodious, bringing inconvenience to the next-step simulation [16][17][18][19] . Epstein test method is still the most widely applied and valuable method for testing magnetic properties of grain-oriented electrical steel [20] .…”

mentioning

confidence: 99%

Hard Magnetization Direction and Its Relation with Permeability of Conventional Grain-oriented Electrical Steel

Wang

Zhu

2016

Rare Metal Materials and Engineering

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Magnetic properties of conventional grain-oriented electrical steel sheets are different in various directions. In the present paper, Epstein standard samples were cut with different angles to rolling direction, and the corresponding magnetic properties of samples were tested. Results show that the hard magnetization direction to the rolling direction is around 60°. Conventional elliptical models are not accurate to simulate permeability at all magnetic intensities, and parabolic and hybrid models with high accuracy are proposed to simulate relations between permeability and magnetization direction. When magnetic intensity is no less than 10 000 A/m, hybrid model can be used, and when magnetic intensity is less than 10 000 A/m, parabolic model should be applied. Two-stage relation model of permeability and magnetization angles is of significance in improving the accuracy of electromagnetic engineering calculations of electrical steel and can be applied in industrial applications.

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2D magnetization of grain-oriented 3%-Si steel under uniaxial stress

Cited by 9 publications

References 12 publications

Magnetic Properties in Deformed Grain Oriented Electrical Steel: On the Role of Strain Hardening Exponent and Microstructural Developments

Magnetic Properties in Deformed Grain Oriented Electrical Steel: On the Role of Strain Hardening Exponent and Microstructural Developments

Measurement Techniques for Magnetic Characterization of Fe-Si Alloys

Hard Magnetization Direction and Its Relation with Permeability of Conventional Grain-oriented Electrical Steel

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