轧制工艺对薄带铸轧无取向硅钢组织性能的影响  

Effect of rolling process on microstructure and properties of strip casting non-oriented silicon steel

作　　者：焦海涛 蔺晓雪 谢信祥 刘德佳[1,2] 唐延川 赵龙志 JIAO Haitao;LIN Xiaoxue;XIE Xinxiang;LIU Dejia;TANG Yanchuan;ZHAO Longzhi(Key Laboratory of Advanced Materials for Vehicles&Laser Additive Manufacturing of Nanchang City,East China Jiaotong University,Nanchang 330013,China;School of Materials Science and Engineering,East China Jiaotong University,Nanchang 330013,China)

机构地区：[1]华东交通大学,南昌市载运工具先进材料与激光增材制造重点实验室,江西南昌330013 [2]华东交通大学材料科学与工程学院,江西南昌330013

出　　处：《轧钢》2021年第5期18-22,31,共6页Steel Rolling

基　　金：江西省教育厅青年科学基金项目(GJJ190349);华东交通大学博士启动基金项目(439)。

摘　　要：利用光学显微镜、XRD、EBSD等研究了轧制工艺对薄带铸轧无取向硅钢组织、织构和磁性能的影响。研究表明,随热轧压下率增大,冷轧组织变形储能及剪切带的比例逐渐降低,冷轧板中α织构减弱,γ织构增强。退火板晶粒尺寸随热轧压下率增大而增加。热轧压下率为17%及40%时,退火织构以强的Goss织构及相对弱的{100}织构为主,热轧压下率达到55%后,退火织构为强的{115}<110>和{114}<371>织构,Goss织构和{100}组分明显减弱。随热轧压下率增大,退火板磁感值先升高后降低,铁损值先减小后增加。热轧压下率为40%时,退火板综合磁性能最优。The effect of rolling process on the microstructure,texture and magnetic properties of strip casting non-oriented silicon steel was investigated by using optical microscope,XRD and EBSD.The results indicated that the stored energy and the fraction of shear bands in cold rolled microstructure gradually decreased with increase in hot rolling reduction.Meanwhile,theα-fiber deformation texture was weakened,while theγ-fiber texture was enhanced.The grain size of the annealed microstructure gradually increased after adopting hot rolling.The annealing texture of the specimens subjected to hot rolling with reduction 17%and 40%was characterized by strong Goss and relatively weak{100}texture.When the hot rolling reduction reached 55%,strong{115}<110>and{114}<371>annealing texture was developed,accompanied by the weakening of Goss and{100}components.The magnetic induction of annealed sheet first increased and then decreased,while the core loss firs decreased and then increased.The best magnetic properties were obtained in the case of 40%reduction hot rolling.

关 键 词：薄带铸轧 无取向硅钢 热轧压下率 组织 织构 磁性能 

分 类 号：TG142.1[一般工业技术—材料科学与工程] TG335.56[金属学及工艺—金属材料]