常化工艺对取向硅钢组织织构和磁性能的影响  

Effect of normalizing process on microstructure and magnetic properties of grain-oriented silicon steel

作　　者：尤文豪 陈霞[1] 陈彬[2] You Wenhao;Chen Xia;Chen Bin(School of Materials and Metallurgy,Wuhan University of Science and Technology,Wuhan Hubei 430081,China;School of Materials Science and Engineering,Shanghai Jiao Tong University,Shanghai 200240,China)

机构地区：[1]武汉科技大学材料与冶金学院,湖北武汉430081 [2]上海交通大学材料科学与工程学院,上海200240

出　　处：《金属热处理》2024年第3期50-55,共6页Heat Treatment of Metals

摘　　要：利用EBSD技术和单片测量法,研究了常化温度对含3.2wt%Si高磁感取向(Hi-B)硅钢组织、织构和磁性能的影响。研究表明,随着常化温度的增加,常化板的柱状晶粒发生完全再结晶,织构类型相似,都以α织构、λ织构和Goss织构为主。脱碳退火后,织构主要都由{114}<481>、γ织构和Goss织构组成,初次再结晶晶粒尺寸随着常化温度的增加而先增大后减小(900℃时最大,最大为20.3μm)。在850℃常化温度下,脱碳退火后的初次再结晶试样中对磁性能有利的{114}<481>织构和Goss织构的面积分数达到最高(分别为26.1%和4.5%)。在常化温度为850℃时,Hi-B钢可获得最佳磁性能,B8=1.938 T,P1.7/50=0.828 W/kg。Effect of normalizing temperature on the microstructure,texture and magnetic properties of 3.2wt%Si high magnetic induction orientation(Hi-B)silicon steel was studied by means of EBSD technique and single-chip measurement method.The results show that with the increase of normalizing temperature,the columnar grains of the normalized plate are completely recrystallized,and the texture types are similar toαtexture,λtexture and Goss texture.After decarburizing annealing,the texture mainly consists of{114}<481>,γtexture and Goss texture,and the primary recrystallized grain size increases first and then decreases with the increase of normalizing temperature(maximum at 900℃,up to 20.3μm).After normalizing annealing at 850℃,the area fractions of{114}<481>texture and Goss texture,which are beneficial to magnetic properties,reach the highest(26.1%and 4.5%,respectively)in the primary recrystallized specimen.When the normalizing temperature is 850℃,the Hi-B steel can obtain the best magnetic properties,B_8=1.938 T,P_(1.7/50)=0.828 W/kg.

关 键 词：取向硅钢 常化温度 显微组织 织构 磁性能 

分 类 号：TG142.77[一般工业技术—材料科学与工程]