高磁感取向硅钢组织、织构演变分析  

Analysis on Evolution of Microstructure and Texture for Hi-B Steel

作　　者：董丽丽[1,2] 黄禄璐 谢丽 刘宝志 Dong Li-li;Huang Lu-lu;Xie Li;Liu Bao-zhi(School of Materials and Metallurgy(Rare Earth Institute),Inner Mongolia University ofScience and Technology,Baotou 014010,Inner Mongolia Autonomous Region,China;Technical Center of Inner Mongolia Baotou Steel Union Co.,Ltd.,Baotou 014010,Inner Mongolia Autonomous Region,China;Baotou Winfiner Tombarthite Magnetism Material Co.,Ltd.,Baotou 014010,Inner Mongolia Autonomous Region,China)

机构地区：[1]内蒙古科技大学材料与冶金学院(稀土学院),内蒙古包头014010 [2]内蒙古包钢钢联股份有限公司技术中心,内蒙古包头014010 [3]包头市威丰稀土电磁材料股份有限公司,内蒙古包头014010

出　　处：《包钢科技》2024年第3期61-66,共6页Science & Technology of Baotou Steel

摘　　要：采用蔡司显微镜、X射线衍射仪等检测手段分析高磁感取向硅钢(Hi-B钢)在生产各个阶段的组织形态和宏观织构。结果表明,高磁感取向硅钢各生产阶段的显微组织均为铁素体,经脱碳渗氮退火后完全再结晶,平均晶粒尺寸为28.92μm,经过高温退火后完成二次再结晶,成品平均晶粒尺寸为2 cm左右。热轧板次表层织构类型主要是三种典型的剪切织构。冷轧板织构主要由α线织构以及旋转立方织构{001}<110>组成,脱碳退火后主要以α*织构和γ线织构{111}<112>为主,高温退火后的宏观织构主要为高斯织构。高磁感取向硅钢经拉伸平整退火后,织构为单一的位向准确的高斯织构且强度达到峰值。In this paper,the microstructure and macrotexture of Hi-B steel at various stages of production are analyzed with such detection means as Zeiss microscope and X-ray diffractometer.The results showed that the microstructure of Hi-B steel was ferrite at all production stages.The microstructure is completely recrystallized after decarbonizing and nitriding annealing and average grain size is 28.92μm as well as secondary recrystallization is completed after high temperature annealing and average grain size of finished product is about 2 cm.The texture types in sub-surface of hot rolled plate are mainly three types of typical shear textures.The texture of cold rolled plate is mainly composed ofαline texture and rotating cube texture{001}<110>,the texture after decarburizing annealing is mainly α* texture andγline texture{111}<112>as well as the macrotexture after high temperature annealing is mainly Goss texture.The texture of Hi-B steel after stretching,leveling and annealing is single Goss texture with accurate orientation as well as its strength reaches peak.

关 键 词：高磁感取向硅钢 显微组织 织构演变 常化退火 高温退火 

分 类 号：TG142[一般工业技术—材料科学与工程]