Effect of Nb Microalloying on Precipitates, Microstructure and Texture of Normalized Bands of Grain Oriented Silicon Steel
WANG Yong1,2, LI Guangqiang1,2, LIU Yulong1,2, GAO Yang1,3, GUO Xiaolong3, ZHU Chengyi1,2
1 State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, China 2 Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education, Wuhan University of Science and Technology, Wuhan 430081, China 3 Baosteel Central Research Institute, Shanghai 200000, China
Abstract: Grain oriented silicon steels are widely used as the core materials for transformers due to the high magnetic permeability and low core loss, which are charactered by the sharp Goss texture obtained by secondary recrystallization annealing. In order to reduce the slab reheating temperature, niobium is added into grain oriented silicon steel. In this study, four normalized bands of grain-oriented silicon steels with different Nb content (0wt%—0.025 0wt%) were prepared, a detailed study of the precipitates, microstructure, and texture in normalized bands were carried out by various analysis methods. The results show that the precipitates in normalized bands (Nb-free steel) are MnS and composite precipitates of MnS and AlN. Nb is mainly precipitated in the form of Nb(C,N). And the main precipitates in normalized bands (Nb-bearing steel) are composite precipitates of MnS, AlN and Nb(C,N). Due to the strong inhibition effect of Nb(C,N), finer microstructure is obtained in steel with 0.009 0%. However, the effect of Nb addition on microstructure is not obvious when the content is higher than 0.009 0%. And the main textures in normalized bands are {001}〈110〉 and {110}〈001〉, the effect of Nb content on texture is not obvious.
汪勇, 李光强, 刘玉龙, 高洋, 郭小龙, 朱诚意. Nb微合金化对取向硅钢常化板中析出物特征及组织和织构的影响[J]. 材料导报, 2022, 36(7): 20110126-6.
WANG Yong, LI Guangqiang, LIU Yulong, GAO Yang, GUO Xiaolong, ZHU Chengyi. Effect of Nb Microalloying on Precipitates, Microstructure and Texture of Normalized Bands of Grain Oriented Silicon Steel. Materials Reports, 2022, 36(7): 20110126-6.
1 He Z Z, Zhao Y, Luo H W. Electrical steel,Metallurgical Industry Press, China, 2012,pp.1(in Chinese). 何忠治, 赵宇, 罗海文. 电工钢, 冶金工业出版社, 2012,pp. 1 2 Matsuo M. ISIJ International, 1989, 29(10), 809. 3 Atake M, Barnett M, Hutchinson B, et al. Acta Materialia, 2015, 96, 410. 4 Liu H, Yao S, Sun Y, et al. Materials Characterization,2015,106,273. 5 Heo N H. Metallurgical and Materials Transactions A, 2005, 36(11), 3251. 6 Imamura T, Shingaki Y, Hayakawa Y, et al. Metallurgical and Materials Transactions A, 2013, 44(4), 1785. 7 Kubota T, Fujikura M, Ushigami Y, et al. Journal of Magnetism and Magnetic Materials, 2000, 215, 69. 8 Obara T, Takeuchi H, Takamiya T, et al. Journal of Materials Enginee-ring & Performance, 1993, 2(2), 205. 9 Gao Y, Xu G, Guo X, et al. Journal of Magnetism and Magnetic Mate-rials, 2019, 476, 428. 10 Cheng X H, Zhu C Y, Li G Q, et al. Materials Reports, 2016, 30(Z1), 94(in Chinese). 陈先红, 朱诚意, 李光强,等. 材料导报, 2016, 30(Z1), 94. 11 Takamiya T, Furukimi O. Tetsu-to-Hagane,2014, 100(11), 1413. 12 Sakai T, Shimazu T, Chikuma K, et al. Tetsu-to-Hagane, 1984, 70(15), 2049. 13 Feng Y L, Yin X P, Zhang S J. Hot Working Technology, 2015, 44(18), 89(in Chinese). 冯运莉, 尹晓盼, 张思佳. 热加工工艺, 2015, 44(18), 89. 14 Zhang Y, Fu Y L, Wang R W, et al. China Metallurgy, 2008(7), 17(in Chinese). 张颖, 傅耘力, 汪汝武, 等.中国冶金, 2008(7),17. 15 Hulka K, Vlad C M, Doniga A, et al. Steel Research International, 2002, 73(10), 453. 16 Feng Y, Guo J, Li J, et al. Journal of Magnetism and Magnetic Mate-rials, 2017, 426, 89. 17 Li Y, Feng Y L, Wang K L, et al. Heat Treatment of Metals, 2018, 43(5), 6(in Chinese). 李洋, 冯运莉, 王凯琳, 等. 金属热处理, 2018, 43(5), 6. 18 Iwayama K, Haratani T. Journal of Magnetism & Magnetic Materials, 1980, 19(1-3), 15. 19 Klinkenberg C,Hulka K, Bleck W. Steel Research International, 2004, 75(11), 744. 20 Ainslie N G, Seybolt A U. ISIJ International, 1960, 194, 341. 21 Sawamura H, Mori T. Tetsu-to-Hagane, 1955, 41(10), 1082. 22 Schneider J, Li G, Franke A, et al. Journal of Magnetism and Magnetic Materials, 2017, 424, 26. 23 Smith C S. Transaction of American Institute of Mining, Metallurgical, and Petroleum Engineers, 1948, 175, 15. 24 Palmiere E J, Garcia C I, Deardo A J. Metallurgical and Materials Transactions A, 1996, 27(4), 951. 25 Goto H, Miyazawa K, Tanaka K. ISIJ International, 1995, 35(3), 286. 26 Shin S M, Birosca S, Chang S K, et al. Journal of Microscopy, 2008, 230(3), 414. 27 Wang Y, Zhu C, Li G, et al. Materials, 2020, 13(23), 5581.
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2022, Vol. 36 
