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Effect of Al content on magnetic properties of Fe-Al Non-oriented electrical steel

Title
Effect of Al content on magnetic properties of Fe-Al Non-oriented electrical steel
Authors
Hong, J.Choi, H.Lee, S.Kim, J.K.Koo, Y.M.
POSTECH Authors
Koo, Y.M.
Date Issued
Oct-2017
Publisher
Elsevier B.V.
Abstract
The effects of Al content (0.53?��?Al?��?9.65?wt%) on microstructure, texture, magnetic flux density, permeability, core loss and magnetic domain structure of Fe-Al based electrical steel were measured or observed. Average grain size decreased as Al content increased, but Al contents had no severe effects on texture. Magnetic flux density and permeability tends to decrease as Al content increased. Total core loss Ptot was separated into hysteresis loss Ph, eddy-current loss Pe and anomalous loss Pa. As Al increased, Ph increased, but Pe and Pa decreased, so the optimal grain size increased. To reduce core loss of electrical steel with high resistivity, annealing should be conducted at high temperature and for a long time to increase grain size. ? 2017 Elsevier B.V.
Keywords
Electromagnetic induction; Grain size and shape; Magnetic cores; Magnetic domains; Magnetic flux; Magnetism; Silicon steel; Al composition; Average grain size; Core loss; Eddy current-loss; Electrical steels; High resistivity; Loss separation; Non-oriented electrical steel; Aluminum
URI
http://oasis.postech.ac.kr/handle/2014.oak/50606
DOI
10.1016/j.jmmm.2017.03.082
ISSN
0304-8853
Article Type
Article
Citation
Journal of Magnetism and Magnetic Materials, vol. 439, page. 343 - 348, 2017-10
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 KOO, YANG MO
Graduate Institute of Ferrous Technology
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