铈对2.9%Si-0.8%Al无取向硅钢再结晶组织和织构的影响  

Effect of Ce on recrystallization microstructure and texture in a 2.9%Si-0.8%Al non-oriented silicon steel

作　　者：李娜 代威[1] 王永强 李凯轮[1] 项利 仇圣桃[4] LI Na;DAI Wei;WANG Yong-qiang;LI Kai-lun;XIANG Li;QIU Sheng-tao(School of Metallurgical Engineering,Anhui University of Technology,Ma＇anshan 243002,Anhui,China;Key Laboratory of Metallurgical Emission Reduction and Resources Utilization,Ministry of Education,Anhui University of Technology,Ma＇anshan 243002,Anhui,China;School of Materials Science and Engineering,Anhui University of Technology,Ma＇anshan 243002,Anhui,China;National Engineering Research Center of Continuous Casting Technology,Central Iron and Steel Research Institute,Beijing 100081,China)

机构地区：[1]安徽工业大学冶金工程学院,安徽马鞍山243002 [2]冶金减排与资源综合利用教育部重点实验室(安徽工业大学),安徽马鞍山243002 [3]安徽工业大学材料科学与工程学院,安徽马鞍山243002 [4]钢铁研究总院连铸技术国家工程研究中心,北京100081

出　　处：《钢铁》2018年第10期67-73,共7页Iron and Steel

基　　金：国家自然科学基金青年科学基金资助项目(51604002);安徽省大学生创新训练资助项目(201710360160)

摘　　要：利用OM、SEM/EBSD、OIM等手段研究了铈对2.9%Si-0.8%Al无取向硅钢再结晶过程中组织和织构的影响,重点探讨了铈对再结晶率和再结晶晶粒平均尺寸、初始再结晶织构以及再结晶过程中织构演变规律的影响,并分析了其机理。结果表明,含铈试验钢的再结晶率和平均晶粒尺寸均高于不含铈试验钢,且含铈试验钢的再结晶形核织构中有利织构所占的比例更高,对磁性能不利的{111}面织构所占的比例更低。主要原因是无取向硅钢中适量的铈能够有效抑制MnS等微细夹杂的析出并使AlN和Al2O3等夹杂球化、粗化,阻碍了{111}位向的晶粒在夹杂物周围的优先形核和长大。The effect of Ce element on the evolution of recrystallization microstructure and texture in a 2.9%Si-0.8%A1 non-oriented silicon steel during annealing process was investigated by using OM, SEM/EBSD technology and OIM analysis software. The effect of Ce on the evolution of initial recrystallization texture, recrystallization texture, recrystallization ratio and grain size of recrystallization was researched respectively. The results showed that the recrystallized grains size and recrystallization ratio of specimens containing Ce were coarser and higher than those of specimens without Ce respectively. The fraction of favourable textures in specimens with Ce during recrystallization was also higher than that in specimens without Ce. Moreover, the fraction of unfavorable {111} face texture in specimens with Ce was less. The main reason is that appropriate Ce in non-oriented electrical steel reduced fine MnS, coarsen and modified A1203 and spherified AIN inclusions, this results in more favorable textures appearing in non-oriented silicon steel containing Ce.

关 键 词：铈 无取向硅钢 再结晶组织 织构 

分 类 号：TG142.1[一般工业技术—材料科学与工程]