Magnetic losses evolution of a semi-processed steel during forced aging treatments


Autoria(s): MARRA, K. M.; LANDGRAF, F. J. G.; BUONO, V. T.
Contribuinte(s)

UNIVERSIDADE DE SÃO PAULO

Data(s)

18/10/2012

18/10/2012

2008

Resumo

An ultra-low carbon steel (30 ppm after decarburization) containing Al and Si was aged for distinct soaking times at 210 degrees C. The core loss increased continuously until around 24 h. After that, only slight changes were verified. It was found that only the hysteresis loss component changed during the aging treatment. By internal friction test and transmission electron microscopy it was seen that carbon precipitation caused the magnetic aging. By scanning electron microscopy it could be concluded that the increase of aging index was attributed to the high number of carbides larger than 0.1 mu m. (C) 2008 Elsevier B. V. All rights reserved.

Identificador

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, v.320, n.20, p.E631-E634, 2008

0304-8853

http://producao.usp.br/handle/BDPI/18468

10.1016/j.jmmm.2008.04.023

http://dx.doi.org/10.1016/j.jmmm.2008.04.023

Idioma(s)

eng

Publicador

ELSEVIER SCIENCE BV

Relação

Journal of Magnetism and Magnetic Materials

Direitos

restrictedAccess

Copyright ELSEVIER SCIENCE BV

Palavras-Chave #electrical steel #core loss #magnetic aging stress #carbide precipitation #Materials Science, Multidisciplinary #Physics, Condensed Matter
Tipo

article

proceedings paper

publishedVersion