磁场预退火对取向硅钢二次再结晶组织及织构的影响  

Effect of magnetic field pre-annealing on secondary recrystallization structure and texture of oriented silicon steel

作　　者：宿鹏吉 麻永林[1] 董丽丽[1,2] 温铠 罗家豪 刘宝志 Su Pengji;Ma Yonglin;Dong Lili;Wen Kai;Luo Jiahao;Liu Baozhi(School of Materials and Metallurgy,Inner Mongolia University of Science and Technology,Baotou Inner Mongolia 014010,China;Technology Center,Inner Mongolia Baogang Steel Union Co.,Ltd.,Baotou Inner Mongolia 014010,China;Baotou Weifeng Rare Earth Electromagnetic Materials Co.,Ltd.,Baotou Inner Mongolia 014010,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：《金属热处理》2022年第5期131-135,共5页Heat Treatment of Metals

基　　金：内蒙古自治区自然科学基金(2020MS05046);内蒙古科技大学产学研培育基金(2016CXY01)。

摘　　要：对二次冷轧后高温退火前3.2%Si取向硅钢在实验室自主设计研发的脉冲磁场预退火管式炉内进行不同温度的预退火处理,通过光学显微镜与XRD对其组织织构进行分析,利用硅钢片磁性能测试系统对高温退火后的试样进行磁性能分析。结果表明,经脉冲磁场预退火处理后,整体上取向硅钢平均晶粒尺寸随预退火温度升高略微减小,晶粒尺寸主要集中在10~25μm范围内;通过ODF图及{200}极图分析可知,经脉冲磁场预退火后,最强织构随预退火温度的升高从{112}<110>织构变化到{223}<110>织构和{111}<110>织构;随着预退火温度的升高,高温退火后试样的磁性能反而降低。The 3.2%Si oriented silicon steel after secondary cold rolling but before high-temperature annealing was pre-annealed at different temperatures in a pulsed magnetic field pre-annealing tubular furnace independently designed and developed by the laboratory. The microstructure and texture were analyzed by optical microscope and XRD, and the magnetic properties of the specimen annealed at high temperature were analyzed by using the magnetic property test system for silicon steel sheet. The results show that on the whole, the average grain size of the oriented silicon steel decreases slightly with the increase of pre-annealing temperature, and the grain size is mainly in the range of 10-25 μm. According to the analysis of ODF diagram and {200} pole figure, after pulsed magnetic field pre-annealing, the strongest texture changes from {112}<110> texture to {223}<110> texture and {111}<110> texture with the increase of pre-annealing temperature, while the magnetic properties of the high temperature annealed specimen decrease.

关 键 词：取向硅钢 脉冲磁场预退火 织构 显微组织 磁性能 

分 类 号：TG142[一般工业技术—材料科学与工程]