压下率对6.5%Si电工钢温轧板织构的影响规律  

Effect of rolling reduction on the texture of 6.5wt% Si electric steel during warm rolling

作　　者：房现石[1] 梁永锋[1] 叶丰[1] 林均品[1] 

机构地区：[1]北京科技大学新金属材料国家重点实验室,北京100083

出　　处：《功能材料》2012年第24期3346-3350,共5页Journal of Functional Materials

基　　金：国家重点基础研究发展计划(973计划)资助项目(2011CB606304);新世纪优秀人才资助项目(NCET-09-0220);博士后科学基金面上资助项目(2011M500240)

摘　　要：6.5%Si电工钢是一种优异的软磁材料,织构对其磁性能影响很大。利用温轧工艺对6.5%Si电工钢热轧板进行不同压下率轧制,研究了温轧板织构随压下率的变化规律。实验结果显示,随着压下率的增大,{100}〈110〉、{110}〈100〉和γ纤维织构在薄板表层中的强度先增强后减弱,当压下率达到75%时,沿板厚方向形成3个组织区域:表层细晶粒区({110}〈100〉取向为主)、过渡层({111}〈110〉和{111}〈112〉变形晶粒区)和中心层(以拉长的γ纤维织构和{100}〈110〉取向晶粒为主),这种组织和织构不均性对后期织构的发展有重大影响。6.5wt% Si electric steel has excellent soft magnetic properties,on which texture play important role.In this experiment,warm rolling technique was employed to investigate the effect of rolling reduction on texture.It was found that the density of {100}〈110〉,{110}〈100〉 and γ-fiber textures first increased and then decreased with increasing of the rolling reduction.At 75% reduction,the microstructure along the thickness of the sheet formed three zones,containing surface layer with {110}〈100〉 orientation of refined grains,transition layer with {111}〈110〉 and {111}〈112〉 deformed grains,and center layer with elongated γ-fiber and {100}〈110〉 grains.This inhomogeneity on microstructure and texture affected the development of final texture significantly.

关 键 词：6 5%Si电工钢 压下率 温轧 织构 

分 类 号：TG132.2[一般工业技术—材料科学与工程] TG337.3[金属学及工艺—合金]