无取向硅钢50W600组织和织构演变规律的研究  

Study on Evolution Rules of Microstructure and Texture for Non-oriented Silicon Steel 50W600

作　　者：孙丽钢[1] 刘朋成 刘妍[1] 李人杰 王旭东 Sun Li-gang;Liu Peng-cheng;Liu Yan;Li Ren-jie;Wang Xu-dong(Rare Earth Steel Plate Plant of Inner Mongolia Baotou Steel Union Co.,Ltd.,Baotou 014010,Inner Mongolia Autonomous Region,China;Office of Baotou Iron&Steel(Group)Co.,Ltd.,Baotou 014010,Inner Mongolia Autonomous Region,China;Organization Dept.of Baotou Iron&Steel(Group)Co.,Ltd.,Baotou 014010,Inner Mongolia Autonomous Region,China)

机构地区：[1]内蒙古包钢钢联股份有限公司稀土钢板材厂,内蒙古包头014010 [2]包头钢铁(集团)有限责任公司办公室,内蒙古包头014010 [3]包头钢铁(集团)有限责任公司组织部,内蒙古包头014010

出　　处：《包钢科技》2022年第6期1-5,共5页Science & Technology of Baotou Steel

摘　　要：利用光学显微镜(OM)和X射线衍射仪(XRD)研究了铸坯、热轧板、冷轧板和退火板的组织和织构,采用磁性能测试仪测试磁性能。结果表明,通过使用电磁搅拌可使连铸坯中心等轴晶率达到44.5%,采用高温卷取工艺使热轧钢板表面组织发生完全再结晶,平均晶粒尺寸为28.5μm,热轧板中心位置组织由再结晶晶粒和长条带状组织交错组成,退火板平均晶粒尺寸为74.2μm。热轧板厚度方向织构分布不均匀,表层织构主要为黄铜织构和高斯织构,1/4层织构主要为{100}和{112}组分,中心织构主要为{100}和{110}组分,退火板织构主要由{111}面织构和较弱的{100}面织构组成。随机抽取成品样板采用爱泼斯坦方圈法测量磁性能,结果满足用户要求。The microstructure and texture of ingot blank,hot rolled steel plate,cold rolled steel plate and annealed plate are studied with the optical microscope(OM)and X-ray diffractometer(XRD)as well as the magnetic properties are tested with magnetic tester.The results showed that the central equiaxial crystal ratio of continuous casting billet could reach 44.5%with electromagnetic stirring,surface structure of hot rolled steel plate was with perfect recrystallization by adopting high temperature coiling process and average grain size was 28.5μm as well as the microstructure in the center of hot rolled steel plate was with interlaced composition of recrystallized grain and long strip shape banded microstructure and average grain size of annealed plate was 74.2μm.The distribution of texture in the thickness direction of hot rolled steel plate is uneven.The surface textures are mainly brass texture and goss texture,textures of 1/4 layer are mainly{100}and{112}components,central textures are mainly{100}and{110}components as well as textures of annealed plate are mainly composed of{111}and weaker{100}planar textures.The magnetic property of sample plate of finished product randomly drawn is measured with the Epstein square method and the results could meet user requirements.

关 键 词：无取向硅钢 50W600 组织 织构 工艺参数 

分 类 号：TG337.3[金属学及工艺—金属压力加工]