Zhou Bowen, Li Guangqiang, Zhu Chengyi, Zheng Jianxin, Fu Yong, Zhang Feng. Influence of Elements Used as Inhibitor on Precipitation Behavior of the Inclusions and Hot Rolled Microstructure of Grain-oriented Silicon Steel[J]. IRON STEEL VANADIUM TITANIUM, 2014, 35(5): 110-116. doi: 10.7513/j.issn.1004-7638.2014.05.020
Citation:
Zhou Bowen, Li Guangqiang, Zhu Chengyi, Zheng Jianxin, Fu Yong, Zhang Feng. Influence of Elements Used as Inhibitor on Precipitation Behavior of the Inclusions and Hot Rolled Microstructure of Grain-oriented Silicon Steel[J]. IRON STEEL VANADIUM TITANIUM, 2014, 35(5): 110-116. doi: 10.7513/j.issn.1004-7638.2014.05.020
Zhou Bowen, Li Guangqiang, Zhu Chengyi, Zheng Jianxin, Fu Yong, Zhang Feng. Influence of Elements Used as Inhibitor on Precipitation Behavior of the Inclusions and Hot Rolled Microstructure of Grain-oriented Silicon Steel[J]. IRON STEEL VANADIUM TITANIUM, 2014, 35(5): 110-116. doi: 10.7513/j.issn.1004-7638.2014.05.020
Citation:
Zhou Bowen, Li Guangqiang, Zhu Chengyi, Zheng Jianxin, Fu Yong, Zhang Feng. Influence of Elements Used as Inhibitor on Precipitation Behavior of the Inclusions and Hot Rolled Microstructure of Grain-oriented Silicon Steel[J]. IRON STEEL VANADIUM TITANIUM, 2014, 35(5): 110-116. doi: 10.7513/j.issn.1004-7638.2014.05.020
1. Key Laboratory of Ferrous Metallurgy and Resources Utilization, Ministry of Education, Wuhan University of Science and Technology, Wuhan 430081, Hubei, China;
2. Silicon Steel Department, Baoshan Iron & Steel Co., Ltd., Shanghai 201900, China
The influence of the molar ratio of Al to N and Mn to S on precipitation behavior of the inclusions and hot rolled microstructure of grain-oriented silicon steel has been studied in this paper.The results show that the inclusions in steel with different content of Al,N and Mn,S nucleate with Al2O3,where MnS and Al N grow surrounding Al2O3,and their size is less than 5 μm.The main precipitates in steel are complex inhibitors of MnS and Al N whose size is less than 0.5 μm.The number of precipitates is the most in the sample where the molar ratios of Al to N and Mn to S are 0.9 and 15.7 respectively,and its density are 5 937/mm3 in slab and 7 024/mm3 in hot roll plate.The average diameter of the resulting precipitates is smallest,which is 0.17 μm in slab and 0.15 μm in hot roll plate.The number of precipitates in hot roll plate increases when compared with that in slab,and the structure is the most uniform in edge and center of hot roll plate.
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