含锡取向硅钢高温退火过程中组织及织构演变  

Evolution of Microstructure and Texture of Tin-containing Oriented Silicon Steel during High Temperature Annealing

作　　者：郭晓雨 李涛[1] 韩强[1] 席磊 金自力[1] 吴忠旺[1] GUO Xiaoyu;LI Tao;HAN Qiang;XI Lei;JIN Zili;WU Zhongwang(School of Materials and Metallurgy,Inner Mongolia University of Science and Technology,Baotou 014010,China)

机构地区：[1]内蒙古科技大学材料与冶金学院,内蒙古包头014010

出　　处：《热加工工艺》2023年第4期133-138,共6页Hot Working Technology

基　　金：国家自然科学基金资助项目(51761033);内蒙古自然科学基金项目(2019MS05054)。

摘　　要：研究了含锡取向硅钢在高温退火过程中不同退火温度下的组织和织构。采用金相显微镜(OM)观察了试样组织,采用场发射扫描电子显微镜对试样进行了微区取向测量,并利用Channel 5软件对测量数据进行处理分析,借助X射线衍射仪(XRD)进行了宏观织构检测分析。结果表明:高温退火过程中,试验钢在1000~1050℃开始发生二次再结晶。二次再结晶前,主要以{111}<110>、{111}<112>和{411}<148>以及α织构({112}<110>)为主,还有少量的旋转立方织构{001}<110>。随着温度的升高,有利织构{411}<148>的含量不断增加,不利织构{001}<110>的含量不断减少。试验钢在二次再结晶之后,Goss织构逐渐占主导地位。含锡取向硅钢二次再结晶发生后,Goss晶粒的偏差角减小。Goss晶粒在异常长大的过程中,其位向逐渐趋于标准,这有利于磁感应强度的提高。The microstructure and texture of tin-oriented silicon steel at different annealing temperatures during high-temperature annealing were studied.The microstructure of the sample was observed by metallographic microscope(OM),and the field emission scanning electron microscope was used to measure the micro-region orientation of the sample and the Channel5 software was used to process and analyze the measurement data.Macroscopic texture analysis was carried out by means of X ray diffractometer(XRD).The results show that,during the high temperature annealing process,the secondary recrystallization of the test steel begins to undergo at 1000-1050℃.Before the abnormal growth of Goss grains,{111}<110>texture,{111}<112>texture,{411}<148>texture andαtexture({111}<112>)are dominant.There is also a small amount of rotational cubic{001}<110>texture.With the increase of temperature,the contents of favorable{411}<148>texture increases continuously,and the content of unfavorable{001}<110>texture decreases continuously.After secondary recrystallization of the test steel,the Goss texture is dominant.After secondary recrystallization of silicon steel with tin orientation,the deviation angle of Goss grains decreases.During the abnormal growth of Goss grains,their orientation gradually tends to the standard,which is beneficial to the increase of magnetic induction intensity.

关 键 词：取向硅钢 二次再结晶 织构 高温退火 锡 

分 类 号：TG156.2[金属学及工艺—热处理]