Effect of Magnetic Annealing on Recrystallization Texture in Silicon Steel Thin Strip

Author(s):  
Y.H. Sha ◽  
S.C. Zhou ◽  
Z.K. Zou ◽  
X. Zhao ◽  
L. Zuo
2005 ◽  
Vol 495-497 ◽  
pp. 435-440
Author(s):  
Y.H. Sha ◽  
S.C. Zhou ◽  
Z.K. Zou ◽  
X. Zhao ◽  
Liang Zuo

Fe-3.10%Si thin strips were prepared by symmetric and asymmetric cold rolling from commercial grain oriented silicon steel sheets, then annealed with and without a magnetic field. Magnetic field of 12T was applied along the rolling direction. Magnetic annealing does not essentially change the texture development that recrystallization texture consists mainly of η fiber (RD//<001>), and the strongest component tends to transform from Goss ({110}<001>) to {210}<001> with the increase in speed ratio and annealing temperature. But magnetic annealing promotes Goss component in the strips rolled with small speed ratios, while decreases {210 <001> component in those rolled with large speed ratios. Possible effect mechanism of magnetic annealing was discussed.


2005 ◽  
Vol 495-497 ◽  
pp. 429-434 ◽  
Author(s):  
Y.H. Sha ◽  
S.C. Zhou ◽  
Z.K. Zou ◽  
F. Zhang ◽  
Liang Zuo

Fe-3.10%Si thin strips were prepared from commercial grain oriented silicon steel sheet by cold rolling with different speed ratios and annealed at 1123K in vacuum, the cold rolling and recrystallization textures were analyzed. Cold rolling texture consists mainly of {111}<112>, {554}<225> and {332}<113> components, while their orientation densities vary with speed ratio and layer through strip thickness. Recrystallization texture development depends on speed ratio obviously, and the peak orientation density deviates from {110}<001> towards {210}<001> with the increase in speed ratio.


1999 ◽  
Vol 35 (5) ◽  
pp. 3373-3375 ◽  
Author(s):  
K.N. Chai ◽  
N.H. Heo ◽  
J.G. Na ◽  
H.-T. Jeong ◽  
S.R. Lee

2011 ◽  
pp. 661-668
Author(s):  
Qin Peng ◽  
Lei Wang ◽  
Xianyong He ◽  
Rong Yang ◽  
Changjiang Song ◽  
...  

2013 ◽  
Vol 690-693 ◽  
pp. 139-146 ◽  
Author(s):  
Li Hua Liu ◽  
Li Juan Li ◽  
Qi Jie Zhai

The effects of a 2 T pulsed magnetic field primary annealing process on microstructure evolution and grain boundary characteristics in two-stage cold-rolled silicon steel were examined. Pulsed magnetic annealing increased grain size through the application of relatively smaller intensity of magnetic fields (2 T), compared to steady magnetic annealing. The effect of increasing grain size may be attributed to the magnetic acceleration effect of boundary motion under magnetic pulse conditions. Pulsed magnetic annealing may serve to enhance the relative intensity of the {111} component and decrease the frequency of low-angle misorientations. Repeated magnetostriction induced by pulsed magnetic field applications may accelerate overall dislocation motion. These findings suggest that pulsed magnetic fields require relatively lower intensities than steady magnetic fields to achieve superior results, providing a potentially viable alternative for industrial annealing processes for electrical steels.


2011 ◽  
Vol 194-196 ◽  
pp. 1314-1318
Author(s):  
Zheng Gui Zhang ◽  
Yan Dong Liu ◽  
Fu Wang

The effect of temperature on the recrystallization texture and microstructure of non-oriented silicon steel under asymmetrically rolling condition was quantatively studied using X-ray diffraction technology. The results show that the texture component accumulates around {111}<112> when annealed at 800°C. Texture intensity is high and grain size is uniformly distributed between 50μm and 100μm with best magnetism. When annealed at 850°C and 900°C, texture component is scattered and the grain size is also bigger. However, for the annealing at 750°C, the texture component is similar to cold rolled process. The grain size is small and non-uniform, which is unfavorable to magnetism. The difference of forces along the fast and slow side of the roller results in different deformation texture and further affects the intensity of recrystallization texture along the two sides of the roller.


1987 ◽  
Vol 61 (8) ◽  
pp. 3853-3855
Author(s):  
Zhen‐Chuan Li ◽  
Qi‐Chun Lü ◽  
Zhong‐Zhi He

1999 ◽  
Vol 32 (1-4) ◽  
pp. 119-136
Author(s):  
Jong Soo Woo ◽  
Chan-Hee Han ◽  
Byung-Deug Hong ◽  
Jirou Harase

Primary recrystallized Fe–3%Si specimens containing AI and nitrided were annealed intermittently with the heating rate of 15℃/h in 100% N2 atmosphere. The magnetic induction B8 was measured after each annealing. The onset of secondary recrystallization was detected by the rapid rise of B8. The maximum B8 obtained was about 1.94 T when the onset temperature of the secondary recrystallization was around 1075℃ regardless of the initial grain size or nitrogen content.The same primary specimens were coated with MgO and annealed with the same heating rate in 5% H2–N2. The maximum B8 obtained was nearly same as with the above annealing condition, however, the initial grain size and nitrogen content was quite contrary in this annealing. The difference in the optimum grain size and nitrogen content for obtaining the highest B8 between both annealings was explained on the assumption that ∑9 boundaries become most mobile at 1075℃ regardless of the annealing methods. Based on this finding, the possibility of producing grain oriented silicon steel without hot band annealing and nitriding treatment was shown.


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