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Effect of grain boundary-magnetic domain interaction on the magnetization behavior of non-oriented electrical steels

Hadi Pirgazi (UGent) , Roumen Petrov (UGent) and Leo Kestens (UGent)
(2016) STEEL RESEARCH INTERNATIONAL. 87(2). p.210-218
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Abstract
Magnetic properties of electrical steels such as magnetic permeability and electrical losses are mainly related to chemical composition, crystallographic orientation, and microstructure. Several models have been proposed to empirically correlate magnetic properties and microstructural parameters. A quantitative model based on physical understanding of the interaction between the magnetic field variables (e.g., domain structure) and local microstructural variables (e.g., grain orientation and misorientation, grain boundary planar inclination) is still missing. To obtain a better understanding of the interaction between grain boundaries and domain walls, the magnitude of free pole density at grain boundaries was taken into account. Experimental results from three-dimensional EBSD experiments were employed to measure the grain boundary orientation for several samples with different chemical composition and grain size. The free pole density was calculated using the relative misorientation between adjacent grains and was included in the model together with grain size, magnetocrystalline anisotropy energy, and silicon equivalent. By comparing modeled and measured values of magnetic induction measured at low, medium, and high magnetic fields, it was shown that the magnetization behavior can be more accurately predicted when the grain boundary characteristics are taken into account.
Keywords
fee pole density, anisotropy energy, three-dimensional EBSD, magnetic induction, electrical steels, SHEET, PROPERTY, RECRYSTALLIZATION TEXTURE, MICROSTRUCTURE

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Citation

Please use this url to cite or link to this publication:

Chicago
Pirgazi, Hadi, Roumen Petrov, and Leo Kestens. 2016. “Effect of Grain Boundary-magnetic Domain Interaction on the Magnetization Behavior of Non-oriented Electrical Steels.” Steel Research International 87 (2): 210–218.
APA
Pirgazi, H., Petrov, R., & Kestens, L. (2016). Effect of grain boundary-magnetic domain interaction on the magnetization behavior of non-oriented electrical steels. STEEL RESEARCH INTERNATIONAL, 87(2), 210–218.
Vancouver
1.
Pirgazi H, Petrov R, Kestens L. Effect of grain boundary-magnetic domain interaction on the magnetization behavior of non-oriented electrical steels. STEEL RESEARCH INTERNATIONAL. 2016;87(2):210–8.
MLA
Pirgazi, Hadi, Roumen Petrov, and Leo Kestens. “Effect of Grain Boundary-magnetic Domain Interaction on the Magnetization Behavior of Non-oriented Electrical Steels.” STEEL RESEARCH INTERNATIONAL 87.2 (2016): 210–218. Print.
@article{6844030,
  abstract     = {Magnetic properties of electrical steels such as magnetic permeability and electrical losses are mainly related to chemical composition, crystallographic orientation, and microstructure. Several models have been proposed to empirically correlate magnetic properties and microstructural parameters. A quantitative model based on physical understanding of the interaction between the magnetic field variables (e.g., domain structure) and local microstructural variables (e.g., grain orientation and misorientation, grain boundary planar inclination) is still missing. To obtain a better understanding of the interaction between grain boundaries and domain walls, the magnitude of free pole density at grain boundaries was taken into account. Experimental results from three-dimensional EBSD experiments were employed to measure the grain boundary orientation for several samples with different chemical composition and grain size. The free pole density was calculated using the relative misorientation between adjacent grains and was included in the model together with grain size, magnetocrystalline anisotropy energy, and silicon equivalent. By comparing modeled and measured values of magnetic induction measured at low, medium, and high magnetic fields, it was shown that the magnetization behavior can be more accurately predicted when the grain boundary characteristics are taken into account.},
  author       = {Pirgazi, Hadi and Petrov, Roumen and Kestens, Leo},
  issn         = {1611-3683},
  journal      = {STEEL RESEARCH INTERNATIONAL},
  keyword      = {fee pole density,anisotropy energy,three-dimensional EBSD,magnetic induction,electrical steels,SHEET,PROPERTY,RECRYSTALLIZATION TEXTURE,MICROSTRUCTURE},
  language     = {eng},
  number       = {2},
  pages        = {210--218},
  title        = {Effect of grain boundary-magnetic domain interaction on the magnetization behavior of non-oriented electrical steels},
  url          = {http://dx.doi.org/10.1002/srin.201400608},
  volume       = {87},
  year         = {2016},
}

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