Hard magnetization direction and its relation with magnetic permeability of highly grain-oriented electrical steel  

作　　者：Hao Wang Chang-sheng Li Tao Zhu 

机构地区：[1]State Key Laboratory of Rolling and Automation, Northeastern University

出　　处：《International Journal of Minerals,Metallurgy and Materials》2014年第11期1077-1082,共6页矿物冶金与材料学报（英文版）

基　　金：financially supported by of the National Natural Science Foundation of China(Nos.51174057 and 51274062);the National High Technology Research and Development Program of China(No.2012AA03A503);the Research Fund for the Doctoral Program of Higher Education of China(No.20130042110040)

摘　　要：The magnetic properties of highly grain-oriented electrical steel vary along different directions. In order to investigate these properties, standard Epstein samples were cut at different angles to the rolling direction. The hard magnetization direction was found at an angle of 60° to the rolling direction. To compare the measured and fitting curves, when the magnetic field intensity is higher than 7000 A/m, it is appropriate to simulate the relation of magnetic permeability and magnetization angle using the conventional elliptical model. When the magnetic field intensity is less than 3000 A/m, parabolic fitting models should be used; but when the magnetic field intensity is between 3000 and 7000 A/m, hybrid models with high accuracy, as proposed in this paper, should be applied. Piecewise relation models of magnetic permeability and magnetization angle are significant for improving the accuracy of electromagnetic engineering calculations of electrical steel, and these new models could be applied in further industrial applications.The magnetic properties of highly grain-oriented electrical steel vary along different directions. In order to investigate these properties, standard Epstein samples were cut at different angles to the rolling direction. The hard magnetization direction was found at an angle of 60° to the rolling direction. To compare the measured and fitting curves, when the magnetic field intensity is higher than 7000 A/m, it is appropriate to simulate the relation of magnetic permeability and magnetization angle using the conventional elliptical model. When the magnetic field intensity is less than 3000 A/m, parabolic fitting models should be used; but when the magnetic field intensity is between 3000 and 7000 A/m, hybrid models with high accuracy, as proposed in this paper, should be applied. Piecewise relation models of magnetic permeability and magnetization angle are significant for improving the accuracy of electromagnetic engineering calculations of electrical steel, and these new models could be applied in further industrial applications.

关 键 词：electrical steel magnetization direction magnetic permeability mathematical models 

分 类 号：TG142.4[一般工业技术—材料科学与工程]