Evolution of magnetic properties and crystallographic texture in electrical steel with large plastic deformation
Contribuinte(s) |
UNIVERSIDADE DE SÃO PAULO |
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Data(s) |
17/04/2012
17/04/2012
2011
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Resumo |
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. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3560895] |
Identificador |
JOURNAL OF APPLIED PHYSICS, v.109, n.7, 2011 0021-8979 http://producao.usp.br/handle/BDPI/14692 10.1063/1.3560895 |
Idioma(s) |
eng |
Publicador |
AMER INST PHYSICS |
Relação |
Journal of Applied Physics |
Direitos |
openAccess Copyright AMER INST PHYSICS |
Palavras-Chave | #HYSTERESIS LOSS #SILICON STEEL #Physics, Applied |
Tipo |
article proceedings paper publishedVersion |