Acta Metallurgica Sinica (English Letters) >
Effect of Ball Scribing on Relative Permeability of Grain-oriented Electrical Steel
Received date: 2013-01-15
Revised date: 2013-05-03
Online published: 2013-09-13
Supported by
National Natural Science Foundation of China (Nos. 51174057 and 51274062) and the National High Technology Research and Development Program (No. 2012AA03A503).
Effect of ball scribing on relative permeability of conventional grain-oriented (CGO) and high permeability grain-oriented (HGO) electrical steel was investigated. The samples were scribed with spacing of 2 mm, 4 mm, 8 mm and 16 mm. The results show that after ball scribing with 16 mm width at 1.0 T, relative permeability of both CGO and HGO steels was increased by 109% and 80%, respectively. Relative permeability rises as the scribing space increases, with the movement of the peak value of relative permeability to a higher flux density. Relational models describing relative permeability and flux density were constructed with high accuracy based on experimental data. The experimental data curves were analyzed during the magnetizing process.
Hao WANG , Changsheng LI , Tao ZHU , Nkwachukwu Chukwuchekwa , Ban CAI , Gang HUO . Effect of Ball Scribing on Relative Permeability of Grain-oriented Electrical Steel[J]. Acta Metallurgica Sinica (English Letters), 2013 , 26(5) : 618 -622 . DOI: 10.1007/s40195-013-0021-3
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