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| Effect of Nitrogen Content on Primary Recrystallization Behavior and Magnetic Property of Hi-B Steel |
| Hai-jun WANG1,Bing FU1,2,Li XIANG1,Zhe RONG1,Sheng-tao QIU1 |
1. National Engineering Research Center of Continuous Casting Technology, Central Iron and Steel Research Institute, Beijing 100081, China
2. School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China |
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Abstract The effect of nitrogen content on primary recrystallization microstructure, texture and magnetic property of Hi-B steel was studied by means of optical microscopy (OM), scanning electron microscopy (SEM), and electron backscatter diffraction (EBSD). When nitrogen content increased gradually from 0.0055% to 0.0310%, the primary grain size and variation coefficient of nitrided sheet reduced from 26.85 ��m, 0.590 to 18.87 ��m, 0.525-0.565, respectively. Meanwhile, the primary recrystallization texture style of nitrided sheet was nearly identical to the texture style of decarburized sheet before nitriding treatment, but exhibiting a certain change on texture intensity. The variation of average magnetic induction value (B8) and core loss value (P17/50) were manifested to be M-shaped and W-shaped curves, respectively. When nitrogen content reached 0.0160%, the best value of the average magnetic property of the final product was obtained as follows: the B8 and P17/50 were 1.921 T and 0.968 W/kg, respectively. Meanwhile, the best performance, B8 and P17/50, of single sheet was 1.964 T and 0.854 W/kg.
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Received: 23 December 2015
Published: 18 October 2016
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| Fund:National Natural Science Foundation of China |
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Corresponding Authors:
Hai-Jun junWANG
E-mail: whjchina@yeah.net
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2016, Vol. 23 
