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The effect of precipitate size on magnetic domain behavior in grain-oriented electrical steels

Turner, Steven, Moses, Anthony John, Hall, Jeremy Peter and Jenkins, Keith 2010. The effect of precipitate size on magnetic domain behavior in grain-oriented electrical steels. Journal of Applied Physics 107 (9) , 09A307. 10.1063/1.3334201

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Abstract

Precipitates in the form of grain growth inhibitors play an essential role in the production of grain-oriented electrical steels, as they promote the development of Goss texture during secondary recrystallization. However, the presence of precipitates in the final material can have a detrimental effect on loss and permeability, as they impede domain wall motion during the magnetization process. In previous work [ K. Jenkins and M. Lindenmo, J. Magn. Magn. Mater. 320, 2423 (2008) ], a conventional grain-oriented electrical steel was presented that contained very fine precipitates, which did not damage the bulk magnetic properties. In this article the influence of precipitate size is investigated by comparing local Barkhausen noise measurements and electron backscatter diffraction analysis for a number of grain-oriented electrical steels, which are metallurgically similar except for the size and abundance of precipitates.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Engineering
Subjects: Q Science > QC Physics
Uncontrolled Keywords: Barkhausen effect; grain growth; magnetic domain walls; magnetisation; particle size; precipitation (physical chemistry); recrystallisation; steel; surface texture
Publisher: American Institute of Physics
ISSN: 0021-8979
Last Modified: 18 Oct 2017 14:33
URI: http://orca.cf.ac.uk/id/eprint/8415

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