常化处理对无取向硅钢组织及磁性能的影响  

Effect of Normalizing Treatment on Microstructure and Magnetic Properties of Non-oriented Silicon Steel

作　　者：徐阳 李彦睿 刘雯 张少华 刘宝胜[1] XV Yang;LI Yan-rui;LIU Wen;ZHANG Shao-hua;LIU Bao-sheng(College of Materials Science and Engineering,Taiyuan University of Science and Technology,Taiyuan 030024,China)

机构地区：[1]太原科技大学材料科学与工程学院,太原030024

出　　处：《太原科技大学学报》2024年第4期397-401,408,共6页Journal of Taiyuan University of Science and Technology

基　　金：国家自然科学基金(52071227);山西省科技重大专项(20191102004)。

摘　　要：利用金相显微镜、SEM&EDS和TEM研究了不同常化温度对无取向硅钢样品的组织结构和析出行为,并利用VSM研究了它们对磁性能的影响。结果表明,温度达950℃常化处理样品的晶粒发生了完全再结晶,并随着常化温度升高,晶粒逐渐长大,形成等轴晶,其成品退火板晶粒平均尺寸最大。样品中的析出相主要为AlN,并伴有少量AlN-MnS复合相。理论计算发现微米级析出相的钉扎力均小于其晶界生长的驱动力,因此析出相难以起到阻碍晶粒长大的作用。不同常化温度处理的样品的饱和磁感应强度均低于热轧板的,但随着常化温度的升高,饱和磁感应强度在950℃达到峰值。The effects of different normalizing temperatures on the microstructure,precipitation behaviors and magnetic properties of non oriented silicon steel samples were studied by metallographic microscope(OM),scanning electron microscope,energy spectrum analysis(SEM&EDS)and transmission electron microscope(TEM).The results show that the grains of the normalized samples are completely recrystallized at 950℃,and with the increase of the normalization temperature,the grains gradually grow and form equiaxed grains.The average grain size of the finished annealed plate is the largest.The precipitations in the normalized sample is mainly AlN,accompanied by a small amount of AlN-MnS composite phase.Theoretical calculation shows that the pinning force of micron precipitations is less than the driving force of grain boundary growth,so it is difficult for precipitations to hinder grain growth.The magnetic induction intensity of the samples treated at different normalizing temperatures is lower than that of the hot rolled plate,but with the increase of normalizing temperature,the magnetic induction intensity reaches the peak at 950℃.

关 键 词：无取向硅钢 常化温度 析出相 饱和磁感应强度 

分 类 号：TG142.7[一般工业技术—材料科学与工程]