Recent development of low-loss grain-oriented silicon steel

Ushigami, Y.; Mizokami, Masato; Fujikura, M.; Kubota, Takeshi; Fujii, Hiroyasu; Murakami, Kenichi

doi:10.1016/s0304-8853(02)00933-2

Cited by 87 publications

(42 citation statements)

References 11 publications

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“…[1][2][3][4][5][6][7][8][9] The final product/lamination consists of large grains, from millimeter to centimeter in size -depending on the exact processing route, of near Goss (110) <001> orientation. 3,5,6,9) The CRGO sheets are typically coated with forsterite (Mg 2 SiO 4 ) and are scribed mechanically or by laser for domain refinement.…”

Section: Introductionmentioning

confidence: 99%

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: Introductionmentioning

confidence: 99%

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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“…At present, dominating technologies of producing high magnetic induction grain-oriented electrical steel choose AlN as the main inhibitor, and add small amount of element which precipitates in grain boundary to form auxiliary inhibitors. [6][7][8][9] Niobium is a kind of typical grain boundary precipitation element which has strong tendency to form carbonitride instead of forming oxide or sulfide.…”

Section: Effect Of Niobium On Precipitates and Texture Evolution Of Fmentioning

confidence: 99%

“…Basing on the research of zener, T. Gladman 34) proposed formula (8) to calculate the critical size of secondary phase particle (r*) which is needed to pin grain growth: Where R 0 is the matrix grain size, μm; f is the volume fraction of precipitate particles, %; z is the ratio of the radii of growing and matrix grains, here taking the value of z = 2.…”

Section: Analyses Of Inhibition Intensity Of the Inhibitorsmentioning

confidence: 99%

Effect of Niobium on Precipitates and Texture Evolution of Fe-3% Si Grain-oriented Electrical Steel Annealed Hot Band

Hou

Zhu

et al. 2017

ISIJ International

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“…1) Also, in the case of grain-oriented electrical steel sheets, abnormal grain growth is selectively promoted in a specific crystal orientation, which is called the Goss orientation, in order to improve the magnetic properties. 2) In order to predict the change in the grain size and texture accompanying normal grain growth and abnormal grain growth, various models have been proposed. For example, the statistical model is used to acquire an understanding of the mechanism of orientation selective abnormal grain growth in grain-oriented electrical steel sheets during the secondary recrystallization process.…”

Section: Introductionmentioning

confidence: 99%

Proposal of Grain Growth Model Based on Two-dimensional Local Curvature Multi-vertex Model in the Presence of Pinning Particles

2016

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A grain growth model based on a two-dimensional local curvature multi-vertex model in the presence of pinning particles was developed. This model is a physical model which pursues the minimum total grain boundary energy as the evaluation function, where the unpinning conditions are as follows. The first unpinning condition is that the total energy of the unpinned grain boundary is smaller than the total energy of the pinned grain boundary. The second unpinning condition is that the energy of the grain boundary necessary to surpass the energy barrier is assumed to be smaller than the jumping energy, which is presumably assisted by thermal lattice vibration. Using only the first condition, the Zener pinning effect caused by the finely dispersed particles during normal grain growth was reproduced. With the second condition, the selective abnormal grain growth was reproduced when the abnormally grown grain was surrounded by the grains with low-energy grain boundaries.

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Recent development of low-loss grain-oriented silicon steel

Cited by 87 publications

References 11 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

Effect of Niobium on Precipitates and Texture Evolution of Fe-3% Si Grain-oriented Electrical Steel Annealed Hot Band

Proposal of Grain Growth Model Based on Two-dimensional Local Curvature Multi-vertex Model in the Presence of Pinning Particles

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