Losses and permeability improvement by stress relieving fully processed electrical steels with previous small deformations

The strong increase in the 1.5 T total losses of a 2.2% Si electrical steel, when a small plastic deformation is applied, is almost exclusively due to the increase in its quasi-static hysteresis loss. Stress relieving at 700°C promoted no change in the grain size, a significant reduction of 1.5 T to...

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Bibliographic Details
Published inJournal of magnetism and magnetic materials Vol. 242; no. I; pp. 152 - 156
Main Authors Landgraf, F.J.G., Emura, M.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.04.2002
Subjects
Electrical steel
Hysteresis loss
Plastic deformation
Stress relieving
Electrical steel
Hysteresis loss
Plastic deformation
Stress relieving
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Summary:The strong increase in the 1.5 T total losses of a 2.2% Si electrical steel, when a small plastic deformation is applied, is almost exclusively due to the increase in its quasi-static hysteresis loss. Stress relieving at 700°C promoted no change in the grain size, a significant reduction of 1.5 T total losses and increased permeability, which did not reach, however, the non-deformed values. The anisotropy of total losses of the annealed samples is concentrated in the high-induction component of the hysteresis loss.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
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ISSN:0304-8853
DOI:10.1016/S0304-8853(01)01184-2