薄规格取向硅钢中晶粒取向和尺寸对Goss晶粒异常长大的影响
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摘要
利用EBSD技术统计了薄规格取向硅钢片中初次再结晶和二次再结晶前期组织中{411}〈148〉、{111}〈112〉、{100}〈025〉取向晶粒尺寸分布,分析了三种不同取向的晶粒对Goss晶粒异常长大的影响。结果表明:初次再结晶组织中不同的取向晶粒对应的平均晶粒尺寸(d)存在差异,{411}〈148〉取向晶粒的平均尺寸最大,其次为{100}〈025〉取向晶粒,{111}〈112〉取向晶粒的平均尺寸最小。Goss取向晶粒异常长大的过程中优先吞噬{111}〈112〉取向晶粒,其次是{411}〈148〉取向晶粒,最后是近{100}〈025〉取向晶粒和近黄铜取向晶粒。{111}〈112〉、{411}〈148〉取向晶粒对Goss取向晶粒异常长大的影响主要体现在二次再结晶的前期。因此,可以推断取向硅钢中最终残留的"岛晶"可能来源于近黄铜取向晶粒或近{100}〈025〉取向晶粒。
The grain size distributions of{411}〈148〉,{111}〈112〉and {100}〈025〉in primary recrystallized and secondary recrystallized specimens in TG-CRGO steel were investigated by EBSD technique,and the effects of these three kinds of primary recrystallized grains on abnormal growth of Goss grains were analyzed.The results show that in primary recrystallized specimens,the average grain size order from large to small is {411}〈148〉,{100}〈025〉and {111}〈112〉grains.The abnormal growth process of the Goss grains could be extracted as follows:the {111}〈112〉grains are preferentially swallowed,then the {411}〈148〉grains,and finally near the{100}〈025〉grains and near the Brass grains.{411}〈148〉and {111}〈112〉grains would hinder the abnormal growth of Goss grains at preliminary stage.Therefore,it could be assumed that the residual island grains after final annealing mainly came from near {110}〈112〉grains or near {100} grains.
The grain size distributions of{411}〈148〉,{111}〈112〉and {100}〈025〉in primary recrystallized and secondary recrystallized specimens in TG-CRGO steel were investigated by EBSD technique,and the effects of these three kinds of primary recrystallized grains on abnormal growth of Goss grains were analyzed.The results show that in primary recrystallized specimens,the average grain size order from large to small is {411}〈148〉,{100}〈025〉and {111}〈112〉grains.The abnormal growth process of the Goss grains could be extracted as follows:the {111}〈112〉grains are preferentially swallowed,then the {411}〈148〉grains,and finally near the{100}〈025〉grains and near the Brass grains.{411}〈148〉and {111}〈112〉grains would hinder the abnormal growth of Goss grains at preliminary stage.Therefore,it could be assumed that the residual island grains after final annealing mainly came from near {110}〈112〉grains or near {100} grains.
引文
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2 Yang Fuyao,Gu Lingyun,He Chengxu,et al.Research and prospect on the domain refinement of grain-oriented electrical steel[J].Materials Review A:Review Papers,2015,29(11):36(in Chinese).杨富尧,古凌云,何承绪,等.取向硅钢细化磁畴技术的研究现状及展望[J].材料导报:综述篇,2015,29(11):36.
3 Xia Qiangqiang,Li Lijuan,Liu Lihua,et al.Research progress of the grain-oriented silicon steel production process[J].Materials Review A:Review Papers,2010,24(3):85(in Chinese).夏强强,李莉娟,刘立华,等.取向硅钢生产工艺研究进展[J].材料导报:综述篇,2010,24(3):85.
4 Cheng Ling,Yang Fuyao,Ma Guang,et al.Development and application of high magnetic induction grain-oriented silicon steel for transformer[J].Materials Review A:Review Papers,2014,28(6):115 (in Chinese).程灵,杨富尧,马光,等.电力变压器用高磁感取向硅钢的发展及应用[J].材料导报:综述篇,2014,28(6):115.
5 Shilling J,Houze G L.Magnetic properties and domain structure in grain-oriented 3%Si-Fe[J].IEEE Transactions on Magnetics,1974,10(2):195.
6 Liu Gongtao,Yang Ping,Mao Weimin.Effect of final annealing atmosphere on secondary recrystallization behavior in thin gauge medium temperature grain oriented silicon steel[J].Acta Metallurgica Sinica,2016,52(1):25(in Chinese).刘恭涛,杨平,毛卫民.高温退火气氛对薄规格中温取向硅钢二次再结晶行为的影响[J].金属学报,2016,52(1):25.
7 Nakashima S,Takashima K,Harase J.Effect of final thickness on secondary recrystallization of grain-oriented electrical steel produced by single-stage cold rolling process[J].Journal of The Japan Institute of Metals,1991,55(8):898.
8 Yan M Q,Qian H,Yang P,et al.Analysis of micro-texture during secondary recrystallization in a Hi-B electrical steel[J].Journal of Materials Science and Technology,2011,27(11):1065.
9 Imamura T,Shingaki Y,Hayakawa Y,et al.Effect of cold rolling reduction rate on secondary recrystallized texture in 3Pct Si-Fe steel[J].Metallurgical and Materials Transactions A,2013,44A:1786.
10 Quadir M Z,Chang C S T,Duggan B J.Formation of the Goss texture in a thin foil experiment on Fe-3.2%Si[J].ISIJ International,2010,50(2):264.
11 Maazi N,Rouag N,Etter A L,et al.Influence of neighbourhood on abnormal Goss grain growth in Fe-3%Si steels:Formation of island grains in the large growing grain[J].Scripta Materialia,2006,55:641.
12 He Chengxu,Yang Fuyao,Yan Guochun,et al.Effect of normalizing on textures of thin-gauge grain-oriented silicon steel[J].Acta Metallurgica Sinica,2016,52(9):1063(in Chinese).何承绪,杨富尧,严国春,等.常化处理对薄规格取向硅钢织构的影响[J].金属学报,2016,52(9):1063.
13 Nakamura S,Homma H.Micro-scale OIM study on the recrystallization process of cold rolledα-fiber single crystal[J].Materials Science Forum,2004,467-470:159.
14 Park J T,Ko H S,Joo H D,et al.Orientation of island small grains in grain oriented electrical steels[J].Materials Science Forum,2013,753:530.
15 Chen N,Zaefferer S,Lahn L,et al.Effect of topology on abnormal grain growth in silicon steel[J].Acta Materialia,2003,51:1755.