Anomalous loss hysteresis loop

Autor: Adriano A. Almeida, Daniel L. Rodrigues-Jr, Laura S. P. Perassa, Jeanete Leicht, Fernando J. G. Landgraf
Jazyk: angličtina
Rok vydání: 2014
Předmět:
Zdroj: Materials Research, Vol 17, Iss 2, Pp 494-497 (2014)
Druh dokumentu: article
ISSN: 1516-1439
DOI: 10.1590/S1516-14392014005000020
Popis: This paper discusses the anomalous loss behavior in two electrical steels types. Starting from a non oriented electrical steel coil, three groups of samples with different grain sizes were produced. Grain oriented steel samples were produced from a commercially available material. The experimental procedure was performed by means of magnetic properties measurements using an Epstein frame. A procedure to draw the hysteresis curve of the anomalous loss is proposed. The results reported that anomalous loss has a different behavior when the two electrical steel types are compared. In non oriented steels anomalous loss is concentrated at the low induction region. In grain oriented steels, a remarkable participation of high induction region is observed.
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