热轧工艺对含铌取向硅钢二次冷轧中织构的影响
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摘要
对不同板坯加热温度的含铌取向硅钢热轧板进行二次冷轧,通过EBSD等手段研究不同板坯加热温度的热轧板在二次冷轧后的织构演变规律。结果表明:不同板坯温度热轧板经中间退火后进行二次冷轧处理后,获得的组织晶粒显著细化,二次冷轧平均晶粒尺寸为13μm,二次冷轧后获得的{111}<112>织构强度与板坯加热温度呈负相关,当板坯加热温度由1170℃增至1220℃,二次冷轧中{111}<112>织构强度下降27%。
Effect of slab heating temperature on texture evolution of Nb-contained grain-oriented silicon steel plate prepared by double cold rolling method were studied by means of EBSD and other research methods. The results show that the grain size of the hot rolled plate with different slab heating temperatures was refined obviously in the double cold-rolled microstructure and the average grain size is 13 μm. The texture intensity of {111} < 112 > in the double cold-rolled plates decreases with the increase of slab heating temperature,and the texture intensity of {111} < 112 > decreases by 27% when the slab heating temperature is increased from 1170 ℃ to 1220 ℃.
Effect of slab heating temperature on texture evolution of Nb-contained grain-oriented silicon steel plate prepared by double cold rolling method were studied by means of EBSD and other research methods. The results show that the grain size of the hot rolled plate with different slab heating temperatures was refined obviously in the double cold-rolled microstructure and the average grain size is 13 μm. The texture intensity of {111} < 112 > in the double cold-rolled plates decreases with the increase of slab heating temperature,and the texture intensity of {111} < 112 > decreases by 27% when the slab heating temperature is increased from 1170 ℃ to 1220 ℃.
引文
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[2]Sirisathitkul C,Piromrak S,Jantaratana P.Magnetic impedance of cobalt-coated silicon steels[J].Physica B:Condensed Matter,2011,406(2):155-158.
[3]张大平,李斌,李莉娟.脉冲磁场对高磁感取向硅钢初次再结晶晶粒尺寸的影响[J].金属热处理,2017,42(3):34-37.Zhang Daping,Li Bin,Li Lijuan.Effect of pulse magnetic field on primary recrystallization grain size of high magnetic induction oriented silicon steel[J].Heat Treatment of Metals,2017,42(3):34-37.
[4]刘志桥,杨平,毛卫民,等.取向硅钢中{114}<418>织构对二次再结晶时晶粒异常长大的影响[J].金属学报,2015,51(7):769-776.Liu Zhiqiao,Yang Ping,Mao Weimin,et al.Effect of{114}<418>texture on abnormal growth during secondary recrystallization in grainoriented steel[J].Acta Metallurgica Sinica,2015,51(7):769-776.
[5]何忠治,赵宇,罗海文.电工钢[M].北京:冶金工业出版社,2012.
[6]汤顺启,鲍思前,陈建徽,等.冷轧压下率对Hi-B钢初次及二次再结晶的影响[J].金属热处理,2016,41(9):78-81.Tang Shunqi,Bao Siqian,Chen Jianhui,et al.Effect of cold rolling reduction on primary and secondary recrystallization of Hi-B steel[J].Heat Treatment of Metals,2016,41(9):78-81.
[7]张颖,傅耘力,汪汝武,等高磁感取向硅钢中的抑制剂[J].中国冶金,2008,18(11):4-8.Zhang Ying,Fu Yunli,Wang Ruwu,et al.Inhibitors in high magnetic induction grain-oriented silicon steel[J].China Metallurgy,2008,18(11):4-8.
[8]党宁,李志超,张文康,等.二次冷轧压下率对CGO硅钢Goss织构形成规律的影响[J].材料热处理学报.2016,37(5):138-143.Dang Ning,Li Zhichao,Zhang Wenkang,et al.Influence of secondary cold rolling reduction on Goss texture of a CGO silicon steel[J].Transactions of Materials and Heat Treatment,2016,37(5):138-143.
[9]渠美清,任慧平,金自力,等.稀土Ce对3%取向硅钢组织及抑制剂演变规律的影响[J].金属热处理,2017,42(7):26-30.Qu Meiqing,Ren Huiping,Jin Zili,et al.Effect of Ce on microstructure and inhibitor evolution for 3%grain-oriented steel[J].Heat Treatment of Metals,2017,42(7):26-30.
[10]Morawiec A.On abnormal growth of Goss grains in grain-oriented silicon steel[J].Scripta Material,2011,64(5):466-469.
[11]党宁,张文康,李志超,等.含铜CGO硅钢高温退火过程中的织构演变规律[J].金属热处理,2016,41(2):88-93.Dang Ning,Zhang Wenkang,Li Zhichao,et al.Texture evolution of copper bearing CGO silicon steel during high temperature annealing[J].Heat Treatment of Metals,2016,41(2):88-93.
[12]李志超,杨平,颜孟奇,等.电工钢中{100}织构的演变规律[J].中国体视学与图像分析,2009,14(3):237-244.Li Zhichao,Yang Ping,Yan Mengqi,et al.Evolution of microstructures and textures of{100}initial texture in an electrical steel[J].Chinese Journal of Stereology and Image Analysis,2009,14(3):237-244.
[13]杨平,李志超,毛卫民,等.钢中{111}<112>再结晶织构的形成[J].材料热处理学报,2009,30(3):46-52.Yang Ping,Li Zhichao,Mao Weimin,et al.Formation of the{111}<112>annealing texture in steels[J].Transactions of Materials and Heat Treatment,2009,30(3):46-52.