米振莉,孙强,李志超,林瑞民

• 1:北京科技大学冶金工程研究院
• 2:吉林建龙钢铁有限责任公司

摘要(Abstract)：

测量了W600无取向硅钢(1.35Si-0.25Mn-0.28Al)的静态CCT曲线,根据静态相变点测量了W600的动态CCT曲线。根据动态相变点使用Gleeble3500模拟了实际热轧过程,获得了不同冷速的再结晶组织,使用EBSD技术研究了不同冷却速度下获得的热轧试样的微观织构。使用SEM和EDS观察了W600钢的铸坯以及不同冷速获得试样中的析出物分布情况。实验结果表明:在无取向硅钢的α→γ相变中,冷却速度越低相变温度越高,在动态相变中,当冷却速度为0.75℃/s时,相变开始温度为988℃,相变结束温度为875℃;施加形变也有利于相变温度的提高。热轧模拟实验中,较低的冷却速度有利于获得粗大的再结晶晶粒;随着冷却速度减小,立方织构和γ织构含量上升,旋转立方织构含量下降,其中在冷速为0.25℃/s时,{111}<121>织构含量达28.5%,{111}<100>织构含量达32.4%。Al N和Mn S为W600钢中的典型析出物。铸坯中析出Al N析出物和Mn S+Al复合析出物平均尺寸均高于后续热轧模拟试样。热轧模拟实验中,冷速较快时,存在大量细小弥散状的Mn S析出物,Al N存在于Al N+Mn S复合析出物而存在,单独存在的Al N析出较少。当冷速降低时,析出物的总数量减少且尺寸变大,单独存在的Mn S析出物逐渐消失。

关键词(KeyWords)： 无取向硅钢;相变;织构;析出相

Abstract:

Keywords:

基金项目(Foundation): 中央高校基本科研业务费专项资金(FRF-TP-14-105A2)

作者(Author): 米振莉,孙强,李志超,林瑞民

DOI: 10.13289/j.issn.1009-6264.2016.01.025

参考文献(References)：

• [1]金自力,任慧平,李伟,等.热轧组织对冷轧无取向硅钢退火织构及组织的影响[J].材料热处理学报,2012,33(2):122-126.JIN Zi-li,REN Hui-ping,LI Wei,et al.Effect of thermomechanical treatment history upon annealing microstructure and texture of a cold rolled nonoriented silicon steel[J].Transactions of Materials and Heat Treatment,2012(2):122-126.
• [2]李长生,韩斌,曹丽梅,等.Fe-1.6%Si无取向硅钢的热变形与相变规律[J].机械工程材料,2010(11):95-98.LI Chang-sheng,HAN Bin,CAO Li-mei,et al.Thermal deformation for Fe-1.6%Si non-grain orientated silicon steel[J].Materials for Mechanical Engineering,2010(11):95-98.
• [3]曹丽梅.无取向硅钢W20和W30高温热变形规律研究[D].沈阳:东北大学,2009.
• [4]张婷,张晓明,张琼,等.双辊连铸3%Si无取向硅钢铸带特征[J].东北大学学报:自然科学版,2011(4):509-511.ZHANG Ting,ZHANG Xiao-ming,ZHANG Qiong,et al.Casting strip character of twin-roll casted 3%Si non-oriented silicon steel[J].Journal of Northereast University:Natural Science,2011(4):509-511.
• [5]马良,项利,仇圣桃,等.正火对双辊薄带连铸5.28%Si-1.11%Al无取向高硅钢磁性能的影响[J].金属热处理,2013,38(6):58-62.MA Liang,XIANG Li,QIU Sheng-tao,et al.Effect of normalizing on magnetic property of 5.28%Si-1.11%Al non-oriented high silicon steel produced by twin roll thin strip casting[J].Heat Treatment of Metals,2013,38(6):58-62.
• [6]匡元辉,李建军,岳尔斌,等.退火对TSCR生产低碳低硅无取向硅钢的影响[J].钢铁钒钛,2010(3):25-29.KUANG Yuan-hui,LI Jian-jun,YUE Er-bin,et al.Effect of annealing on low-carbon and low-silicon non-oriented silicon steel produced by TSCR[J].Iron Steel Vanadium Titanium,2010(3):25-29.
• [7]金文旭,许令峰,张仁波,等.W1300无取向硅钢热变形行为的模拟分析[J].材料科学与工程学报,2009(2):210-212.JIN Wen-xu,XU Ling-feng,ZHANG Ren-bo,et al.Simulation of hot rolling behaviors in W1300 non-oriented Si steel[J].Journal of Materials Science and Engineering,2009(2):210-212.
• [8]Fischer O,Schneider J.Influence of deformation process on the improvement of non-oriented electrical steel[J].Journal of Magnetism and Magnetic Materials,2003,254:302-306.
• [9]毛卫民,崔正强,曾燕屏.热轧及常化退火工艺对硅钢冷轧织构的影响[J].电工材料,2006(4):40-42.MAO Wei-min,CUI Zheng-qiang,ZENG Yan-ping.Effect of hot rolling and normalizing annealing processes on the cold rolled texture of silicon steel[J].Electrical Engineering Materials,2006(4):40-42.
• [10]陈凌峰,赵志毅,王宝明,等.晶粒尺寸对无取向硅钢磁性能影响的主成分回归分析[J].材料热处理学报,2014,35(11):215-218.CHEN Ling-feng,ZHAO Zhi-yi,WANG Bao-ming.Principle component regression analysis for effects of grain size on magnetic properties of nonoriented silicon steel[J].Transactions of Materials and Heat Treatment,2014(11):215-218.
• [11]陈可来.电机冷轧硅钢片退火工艺浅析[J].中小型电机,2004,31(3):49,57.CHEN Ke-lai.Study on annealing technology of cold-rolled electric steel lamination[J].S&M Electric Machines,2004,31(3):49,57.
• [12]宋宁,蒲春雷,李建军.CSP制无取向硅钢热轧、常化、冷轧织构的演变[J].钢铁钒钛,2012(3):65-69.SONG Ning,PU Chun-lei,LI Jian-jun.Evolution of hot rolled,normalized and cold rolled texture of non-oriented silicon steel produced by CSP[J].Iron Steel Vanadium Titanium,2012(3):65-69.
• [13]张世峰.双辊薄带连铸硅钢热轧常化组织与织构研究[D].沈阳:东北大学,2009.
• [14]白志浩,张文康,毛卫民.热轧工艺对无取向硅钢组织结构和磁性能的影响[J].钢铁,2006(4):77-81.BAI Zhi-hao,ZHANG Wen-kang,MAO Wei-min.Influence of hot-rolling parameters on microstructure and magnetic properties of non-oriented electrical steel[J].Iron and Steel,2006(4):77-81.
• [15]Thomas B A M A.Giant magnetoresistance in heterogeneous Cu-Co alloys.[J].Physical Review Letters,1992,68(25).
• [16]Xu Y B,Zhang Y X,Wang Y,et al.Evolution of cube texture in strip-cast non-oriented silicon steels[J].Scripta Materialia,2014,87(0):17-20.
• [17]金自力,任慧平,张红杰.无取向硅钢退火织构的演变与磁性能关系的研究[J].材料热处理学报,2007,28(2):77-80.JIN Zi-li,REN Hui-ping,ZHANG Hong-jie.Relation between evolution of annealing texture and magnetic property of non-oriented silicon steel[J].Transactions of Materials and Heat Treatment,2007(2):77-80.
• [18]Tang P Y A Q.Dependence of deformation twinning on grain orientation in a high manganese steel[J].Scripta Materialia,2006,55(7).
• [19]李波,吴忠旺,赵宇.低温取向硅钢热轧析出物与织构的研究[J].金属功能材料,2011(4):1-5.LI Bo,WU Zhong-bo,ZHAO Yu.Study on precipitates and textures in hot rolling strip 0f low temperature grain-oriented silicon steel[J].Metallic Functional Materials,2011(4):1-5.
• [20]李莉.双辊薄带连铸取向硅钢热轧织构研究[D].沈阳:东北大学,2009.
• [21]张颖,傅耘力,吴开明.急冷条件下Nb对高磁感取向硅钢中抑制剂析出行为的影响[J].世界钢铁,2009(2):34-36.
• [22]马良,项利,仇圣桃,等.双辊薄带连铸3.98%Si-0.71%Al无取向硅钢的组织、织构和磁性能[J].机械工程材料,2014(1):47-51.MA Liang,XIANG Li,QIU Sheng-tao,et al.Microstructure,Texture and magnetic properties of 3.98%Si-0.71%Al non-oriented silicon steel prepared by twin-roll thin strip continuous casting[J].Materials for Mechanical Engineering,2014(1):47-51.
• [23]李永超,樊立峰,项利,等.B元素对高牌号无取向硅钢热轧板组织和性能的影响[J].金属功能材料,2011(5):8-12.LI Yong-chao,FAN Li-feng,XIANG Li,et al.Influence of boron on microstructure and properties of hot-rolled band in high-grade non-oriented silicon steel[J].Metallic Functional Material,2011(5):8-12.
• [24]李建军,岳尔斌,王立涛,等.主要工艺对CSP流程生产低碳低硅无取向硅钢组织、析出物和磁性能的影响[J].钢铁研究学报,2010(11):55-59.LI Jian-jun,YUE Er-bin,WANG Li-tao,et al.Effect of main process on the microstructure and precipitates and magnetic properties of low-carbon lowsilicon non-oriented silicon steel by CSP route[J].Journal of Iron and Steel Research,2010(11):55-59.

文章评论(Comment)：