退火温度对耐热型取向硅钢组织与磁性能的影响  

Effect of Annealing Temperature on Microstructure and Magnetic Properties of Heatproof Grain-oriented Silicon Steel

作　　者：何承绪 高洁 毛航银[2] 马光 陈新 祝志祥 张一航 胡卓超 HE Chengxu;GAO Jie;MAO Hangyin;MA Guang;CHEN Xin;ZHU Zhixiang;ZHANG Yihang;HU Zhuochao(State Key Laboratory of Advanced Power Transmission Technology,Global Energy Interconnection Research Institute Co.,Ltd.,Beijing 102211,China;State Grid Zhejiang Electric Power Co.,Ltd.,Jinhua 310007,Zhejiang,China;Baosteel Central Research Institute,Shanghai 200000,China)

机构地区：[1]全球能源互联网研究院有限公司,先进输电技术国家重点实验室,北京102211 [2]国网浙江省电力公司,浙江金华310007 [3]宝钢股份中央研究院硅钢所,上海200000

出　　处：《材料导报》2023年第8期137-141,共5页Materials Reports

基　　金：国家电网公司科技项目(5500-202058251A-0-0-00)。

摘　　要：采用OM和EBSD技术对两种耐热型取向硅钢的微观组织进行了检测分析,研究了不同退火温度下组织的变化规律及耐热机理。结果表明:齿状辊沟槽法是在带材表层形成小晶粒组织和“缝隙”,激光照射法是在带材表层形成“V”字型沟槽。激光照射法取向硅钢耐热温度约为850℃,齿状辊沟槽法取向硅钢耐热温度约为800℃,前者耐热性更为优异。随着退火温度的升高,两种带材的损耗逐渐升高。齿状辊沟槽法取向硅钢损耗升高主要是刻痕区与两侧的Goss晶粒取向差降低所致,而激光照射法取向硅钢损耗升高可能与沟槽附近处Goss晶粒取向的变化有关。In this work,microstructures of two kinds of heatproof grain-oriented silicon steel were investigated by OM and EBSD technique,and the change evolution of microstructure and heatproof mechanism under different annealing temperatures were studied.The results show that small grains and‘gap’were formed in the strip surface by toothed roll groove method,and‘V’shaped groove was formed in the strip surface by laser irradiation method.The heatproof temperature of laser irradiation grain-oriented silicon steel was about 850℃,and the heatproof temperature of toothed roll groove grain-oriented silicon steel was about 800℃.The former has better heatroof.With annealing temperatures increased,the iron loss of two strips increased gradually.For toothed roll groove grain-oriented silicon steel,it s mainly due to the decrease of misorientation difference between the notch area and the Goss grains on both sides,while for laser irradiation grain-oriented silicon steel may be related to the change of Goss orientation near the groove.

关 键 词：取向硅钢 耐热刻痕 微观组织 织构 Goss 退火温度 磁性能 

分 类 号：TG142.77[一般工业技术—材料科学与工程]