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Open AccessArticle
Influence Mechanisms of Cold Rolling Reduction Rate on Microstructure, Texture and Magnetic Properties of Non-Oriented Silicon Steel
by
Feihu Guo
Feihu Guo 1,2,
Yuhao Niu
Yuhao Niu 2,
Bing Fu
Bing Fu 3,
Jialong Qiao
Jialong Qiao 2,3,* and
Shengtao Qiu
Shengtao Qiu 2
1
School of Metallurgy, Northeastern University, Shenyang 110819, China
2
Iron and Steel Research Institute Co., Ltd., Beijing 100081, China
3
Silicon Steel & Sheet Business Division, Xinyu Iron and Steel Group Co., Ltd., Xinyu 338001, China
*
Author to whom correspondence should be addressed.
Crystals 2024, 14(10), 853; https://doi.org/10.3390/cryst14100853 (registering DOI)
Submission received: 2 September 2024
/
Revised: 24 September 2024
/
Accepted: 25 September 2024
/
Published: 29 September 2024
Abstract
The effects of cold rolling reduction on the microstructure, recrystallization behavior, and magnetic properties of 3.0%Si-0.8%Al-0.3%Mn steel were studied by X-ray diffraction (XRD) and electron backscatter diffraction (EBSD). With the reduction rates of 78%, 85% and 87% in the cold rolled sheet, the width of the deformation band becomes narrower, the number of intragranular shear bands decreases, and the proportion of grain boundaries increases. The intensity of the α and γ fibers texture in the cold rolled sheet is enhanced, and the annealed sheet is dominated by the γ fibers texture and the content increases from 26.0% to 34.5%. During the recrystallization process, the Goss and γ-grains nucleate first. The λ-grains nucleate mainly at the grain boundaries of the deformed α-grains, and the α-grains ultimately recrystallize. With the increase in the cold rolling reduction rate, the γ-grains develop into the main texture due to a large amount of nucleation at the deformation band and grain boundary. The λ-grains with a high mobility do not have a numerical advantage, and the increase in the texture content is very small. The content of the unfavorable γ fiber texture in the annealed sheet increases, the magnetic induction intensity B50 decreases, Pe and Pt decrease significantly, and the critical grain size with the lowest iron loss decreases from 136.2 to 109.4 μm.
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MDPI and ACS Style
Guo, F.; Niu, Y.; Fu, B.; Qiao, J.; Qiu, S.
Influence Mechanisms of Cold Rolling Reduction Rate on Microstructure, Texture and Magnetic Properties of Non-Oriented Silicon Steel. Crystals 2024, 14, 853.
https://doi.org/10.3390/cryst14100853
AMA Style
Guo F, Niu Y, Fu B, Qiao J, Qiu S.
Influence Mechanisms of Cold Rolling Reduction Rate on Microstructure, Texture and Magnetic Properties of Non-Oriented Silicon Steel. Crystals. 2024; 14(10):853.
https://doi.org/10.3390/cryst14100853
Chicago/Turabian Style
Guo, Feihu, Yuhao Niu, Bing Fu, Jialong Qiao, and Shengtao Qiu.
2024. "Influence Mechanisms of Cold Rolling Reduction Rate on Microstructure, Texture and Magnetic Properties of Non-Oriented Silicon Steel" Crystals 14, no. 10: 853.
https://doi.org/10.3390/cryst14100853
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