工程科学学报，第40卷，第2期：200-207,2018年2月 Chinese Journal of Engineering,Vol.40,No.2:200-207,February 2018 DOI:10.13374/j.issn2095-9389.2018.02.010;http://journals.ustb.edu.cn 含铜取向硅钢磁性能波动成因分析 杨 平)，王子良)，刘恭涛)，沈雪梅)，薄丹青2)，毛卫民)，汤曙光) 1)北京科技大学材料科学与工程学院，北京1000832)无锡品龙华特电工有限公司，无锡214151 3)马钢股份有限公司第一钢轧总厂，马鞍山243011 区通信作者，E-mail:yang即@mater.usth.cdu.cn 摘要含铜取向硅钢是一种成本低、成品率高的新型CG0取向硅钢.其制备工艺明显区别于主流的低温加热渗氨高磁感 (HB)取向硅钢，其产品的磁性能波动范围显著高于低温渗氮钢.本文对实际生产中收集到的一些含铜CG0钢成品板中的组 织与磁性能进行研究分析，尝试建立不同组织和飚性能相互间的对应关系，并对磁性能波动现象进行分析.分析结果表明，含 铜CG0钢成品板组织与抑制剂有明确的对应关系，而晶粒尺寸与Gs晶粒取向度并不完全呈对应关系.同时对热轧板中的 异常组织进行了深入研究，认为热轧板表层脱碳区和中心层粗大形变晶粒的存在，直接影响了抑制剂的分布，导致最终成品 板中组织和磁性能的波动. 关键词取向硅钢：铜：磁性能：织构 分类号TG142 Analyses of magnetic properties fluctuation in conventional grain oriented silicon steels containing copper YANG Ping,WANG Zi-liang,LIU Gong-tao),SHEN Xue-mei,BO Dan-qing,MAO Wei-min,TANG Shu-guang 1)School of Materials Science and Engineering,University of Science and Technology Beijing,Beijing 100083,China 2)Wuxi Jing-Long Hua-Te Eleetrical Materials Co.,Ltd.,Wuxi 214151,China 3)First Steel Rolling Plant,Maanshan Iron Steel Co.,Ltd.,Maanshan 243011,China Corresponding author,E-mail:yangp@mater.ustb.edu.cn ABSTRACT The conventional grain-oriented(CGO)silicon steel containing copper is a type of grain-oriented steel with low cost and high productivity.The processing parameters in CGO steels are quite different to those of low temperature heating and nitriding high permeability HiB)grain oriented silicon steels,the fluctuation range of the magnetic properties in CGO is much higher than that of ni- trided HiB steels.In this study,typical final sheets from production lines of CGO steels containing copper during early stage production were collected,and the structure,texture,and magnetic properties were determined and compared to establish a relationship between the structure of the steels and inhibitors and to elucidate the reasons for property fluctuation.The results indicate that the macrostruc- ture in the final sheets has a relationship with inhibitors and that the grain sizes do not show monotonous behavior.In addition,the de- fective microstructure in hot-rolled bands and intermediately annealed sheets are investigated and a coarse grain region and a decarburi- zed surface layer are observed.Such regions are considered to influence the inhibitor distribution and impact the fluctuation in structure and its properties. KEY WORDS grain-oriented silicon steels;copper;magnetic properties;texture 含铜普通取向钢（简称含铜CG0钢）的特点是其磁性能明显高于早期的传统CG0取向钢，例如磁 收稿日期：2017-06-11工程科学学报,第 40 卷,第 2 期:200鄄鄄207,2018 年 2 月 Chinese Journal of Engineering, Vol. 40, No. 2: 200鄄鄄207, February 2018 DOI: 10. 13374 / j. issn2095鄄鄄9389. 2018. 02. 010; http: / / journals. ustb. edu. cn 含铜取向硅钢磁性能波动成因分析 杨 平1) 苣 , 王子良1) , 刘恭涛1) , 沈雪梅2) , 薄丹青2) , 毛卫民1) , 汤曙光3) 1) 北京科技大学材料科学与工程学院, 北京 100083 2) 无锡晶龙华特电工有限公司, 无锡 214151 3) 马钢股份有限公司第一钢轧总厂, 马鞍山 243011 苣 通信作者, E鄄mail: yangp@ mater. ustb. edu. cn 摘 要 含铜取向硅钢是一种成本低、成品率高的新型 CGO 取向硅钢. 其制备工艺明显区别于主流的低温加热渗氮高磁感 (HiB)取向硅钢,其产品的磁性能波动范围显著高于低温渗氮钢. 本文对实际生产中收集到的一些含铜 CGO 钢成品板中的组 织与磁性能进行研究分析,尝试建立不同组织和磁性能相互间的对应关系,并对磁性能波动现象进行分析. 分析结果表明,含 铜 CGO 钢成品板组织与抑制剂有明确的对应关系,而晶粒尺寸与 Goss 晶粒取向度并不完全呈对应关系. 同时对热轧板中的 异常组织进行了深入研究,认为热轧板表层脱碳区和中心层粗大形变晶粒的存在,直接影响了抑制剂的分布,导致最终成品 板中组织和磁性能的波动. 关键词 取向硅钢; 铜; 磁性能; 织构 分类号 TG142 收稿日期: 2017鄄鄄06鄄鄄11 Analyses of magnetic properties fluctuation in conventional grain oriented silicon steels containing copper YANG Ping 1) 苣 , WANG Zi鄄liang 1) , LIU Gong鄄tao 1) , SHEN Xue鄄mei 2) , BO Dan鄄qing 2) , MAO Wei鄄min 1) , TANG Shu鄄guang 3) 1) School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China 2) Wuxi Jing鄄Long Hua鄄Te Electrical Materials Co. , Ltd. , Wuxi 214151, China 3) First Steel Rolling Plant, Maanshan Iron & Steel Co. , Ltd. , Maanshan 243011, China 苣 Corresponding author, E鄄mail: yangp@ mater. ustb. edu. cn ABSTRACT The conventional grain鄄oriented (CGO) silicon steel containing copper is a type of grain鄄oriented steel with low cost and high productivity. The processing parameters in CGO steels are quite different to those of low temperature heating and nitriding high permeability (HiB) grain oriented silicon steels, the fluctuation range of the magnetic properties in CGO is much higher than that of ni鄄 trided HiB steels. In this study, typical final sheets from production lines of CGO steels containing copper during early stage production were collected, and the structure, texture, and magnetic properties were determined and compared to establish a relationship between the structure of the steels and inhibitors and to elucidate the reasons for property fluctuation. The results indicate that the macrostruc鄄 ture in the final sheets has a relationship with inhibitors and that the grain sizes do not show monotonous behavior. In addition, the de鄄 fective microstructure in hot鄄rolled bands and intermediately annealed sheets are investigated and a coarse grain region and a decarburi鄄 zed surface layer are observed. Such regions are considered to influence the inhibitor distribution and impact the fluctuation in structure and its properties. KEY WORDS grain鄄oriented silicon steels; copper; magnetic properties; texture 含铜普通取向钢(简称含铜 CGO 钢)的特点是 其磁性能明显高于早期的传统 CGO 取向钢,例如磁