D0I:10.13374/1.issm100I103.2009.07.041 第31卷第7期 北京科技大学学报 Vol.31 No.7 2009年7月 Journal of University of Science and Technology Beijing Ju.2009 半工艺无取向硅钢加临界变形的织构演变 解清阁2)王全礼1,2)罗海文2) 1)首钢技术研究院，北京1000412)钢铁研究总院电工钢联合研发中心，北京100081 摘要测定了半工艺无取向电工钢热轧（终轧温度在A1以下）到成品各工序的织构，以取向分布函数(ODF)的形式对加临 界变形的半工艺无取向硅钢的织构演变作了分析·发现其热轧板表层织构基本是典型的铁素体再结晶{111}组分，心部和1/4 厚度处以铁素体剪切织构和轧制变形织构为主·冷轧变形后，心部和表层织构组分比较接近，《111}、{112}和{100}面织构都 增加，但(111}组分增加最明显.软化退火后，{001}<110>与112}<110>组分迅速降低，织构组分以Y纤维织构为主.通过 增加临界变形，在最终去应力退火后，{111}不利面织构大量减少，高斯组分增加明显，Taylor因子可以表征不同取向晶粒对 变形能的储存能力，从轧制变形时Taylor因子的分布可以解释该实验结果. 关键词无取向硅钢；取向分布函数：临界变形：织构 分类号TG337.3 Texture evolution of semi-processed non-oriented silicon steel with temper rolling XIE Qing-ge).WANG Quan-li2).LUO Hai-wen2) 1)Shougang Research Institute of Technology Beijing 100041,China 2)United RD Center of Electrical Steel in Central Iron 8 Steel Research Institute.Beijing 100081.China ABSTRACT Macrotextures of a semi-processed non-oriented silicon steel were measured in the production process from hot rolling (with the finish rolling temperature below Arl)to final stress relief annealing.and the texture evolution were analyzed in the form of orientation distribution function.It was found that the main component in the surface layer of a hot rolled strip was (111)plane tex- ture resulting from ferritic recrystallization:while shear texture and rolling texture were dominant at the center and at the 1/4 thick- ness of the strip.After cold rolling,the texture components at the center and in the surface were similar.The fractions of (111), (112)and (100)plane textures all increased,particularly (111)component was intensified most significantly.After softening an- nealing,the fractions of (1)11and (112)11components both deereased rapidly and yfiber emerged as the dominant component.When the primarily annealed strip was subjected to temper rolling and subsequent stress relief annealing,the unfavorable (111)plane texture diminished while the GOSS component increased distinctly.Such experimental results could be explained by the calculated Taylor factor distribution since Taylor factors quantitatively linked deformation stored energy in grains to orientations of the grains. KEY WORDS non-oriented silicon steel:orientation distribution function:temper rolling:texture 无取向硅钢作为软磁材料已被广泛应用，该钢 前，中、低硅无取向硅钢仍是市场上产量和需求量最 种通常以冷轧薄板形式，并以全工艺或半工艺状态 大的硅钢钢种[-]. 供货，半工艺冷轧薄板在冲片之后还需要进行退火 无取向硅钢的主要磁性能要求是低铁损、高磁 处理，以实现最终的磁性，这步工序可以消除由于 感，铁损和磁感强烈依赖于材料中的合金元素含 冲片而产生的残余应力，粗化铁素体晶粒，并产生适 量、再结晶织构、晶粒尺寸以及夹杂物的数量和分 当的晶体织构，工业上在冲片前还通过临界变形作 布3可]，无取向硅钢中关于夹杂物和晶粒尺寸以及 为进一步提高成品晶粒尺寸和优化织构的措施。目 某种条件下对织构的影响已经进行了广泛的研 收稿日期：2008-08-12 作者简介：解清阁(1979一），男，硕士，E-mail:xqg1084@126.com半工艺无取向硅钢加临界变形的织构演变 解清阁1‚2） 王全礼1‚2） 罗海文2） 1） 首钢技术研究院‚北京100041 2） 钢铁研究总院电工钢联合研发中心‚北京100081 摘 要 测定了半工艺无取向电工钢热轧（终轧温度在 Ar1 以下）到成品各工序的织构‚以取向分布函数（ODF）的形式对加临 界变形的半工艺无取向硅钢的织构演变作了分析．发现其热轧板表层织构基本是典型的铁素体再结晶｛111｝组分‚心部和1／4 厚度处以铁素体剪切织构和轧制变形织构为主．冷轧变形后‚心部和表层织构组分比较接近‚｛111｝、｛112｝和｛100｝面织构都 增加‚但｛111｝组分增加最明显．软化退火后‚｛001｝＜110＞与｛112｝＜110＞组分迅速降低‚织构组分以γ纤维织构为主．通过 增加临界变形‚在最终去应力退火后‚｛111｝不利面织构大量减少‚高斯组分增加明显．Taylor 因子可以表征不同取向晶粒对 变形能的储存能力‚从轧制变形时 Taylor 因子的分布可以解释该实验结果． 关键词 无取向硅钢；取向分布函数；临界变形；织构 分类号 TG337∙3 Texture evolution of sem-i processed non-oriented silicon steel with temper rolling XIE Qing-ge 1‚2）‚W A NG Quan-li 1‚2）‚LUO Ha-i wen 2） 1） Shougang Research Institute of Technology‚Beijing100041‚China 2） United R＆D Center of Electrical Steel in Central Iron ＆ Steel Research Institute‚Beijing100081‚China ABSTRACT Macrotextures of a sem-i processed non-oriented silicon steel were measured in the production process from hot rolling （with the finish rolling temperature below Ar1） to final stress relief annealing‚and the texture evolution were analyzed in the form of orientation distribution function．It was found that the main component in the surface layer of a hot rolled strip was｛111｝plane tex￾ture resulting from ferritic recrystallization；while shear texture and rolling texture were dominant at the center and at the1／4thick￾ness of the strip．After cold rolling‚the texture components at the center and in the surface were similar．T he fractions of ｛111｝‚ ｛112｝and｛100｝plane textures all increased‚particularly ｛111｝component was intensified most significantly．After softening an￾nealing‚the fractions of ｛001｝＜110＞ and｛112｝＜110＞ components both decreased rapidly and γfiber emerged as the dominant component．When the primarily annealed strip was subjected to temper rolling and subsequent stress relief annealing‚the unfavorable ｛111｝plane texture diminished while the GOSS component increased distinctly．Such experimental results could be explained by the calculated Taylor factor distribution since Taylor factors quantitatively linked deformation stored energy in grains to orientations of the grains． KEY WORDS non-oriented silicon steel；orientation distribution function；temper rolling；texture 收稿日期：2008-08-12 作者简介：解清阁（1979—）‚男‚硕士‚E-mail：xqg1084＠126．com 无取向硅钢作为软磁材料已被广泛应用．该钢 种通常以冷轧薄板形式‚并以全工艺或半工艺状态 供货．半工艺冷轧薄板在冲片之后还需要进行退火 处理‚以实现最终的磁性．这步工序可以消除由于 冲片而产生的残余应力‚粗化铁素体晶粒‚并产生适 当的晶体织构．工业上在冲片前还通过临界变形作 为进一步提高成品晶粒尺寸和优化织构的措施．目 前‚中、低硅无取向硅钢仍是市场上产量和需求量最 大的硅钢钢种［1—2］． 无取向硅钢的主要磁性能要求是低铁损、高磁 感．铁损和磁感强烈依赖于材料中的合金元素含 量、再结晶织构、晶粒尺寸以及夹杂物的数量和分 布［3—5］．无取向硅钢中关于夹杂物和晶粒尺寸以及 某种条件下对织构的影响已经进行了广泛的研 第31卷 第7期 2009年 7月 北 京 科 技 大 学 学 报 Journal of University of Science and Technology Beijing Vol．31No．7 Jul．2009 DOI:10．13374／j．issn1001－053x．2009．07．041