薄带连铸0.7%Si无取向硅钢的显微组织及织构  

Microstructure and texture of strip-cast 0. 7% Si non-oriented silicon steel

作　　者：马良[1] 薛艳春[1] 赵烁[1] 闫涛[1] 岳尔斌[2] 仇圣桃[2] 

机构地区：[1]河北工程大学装备制造学院,河北邯郸056038 [2]钢铁研究总院连铸技术国家工程研究中心,北京100081

出　　处：《材料热处理学报》2015年第12期123-127,共5页Transactions of Materials and Heat Treatment

基　　金：河北省自然科学基金(E2015402094)

摘　　要：采用光学显微镜及电子背散射衍射(EBSD)技术研究了薄带连铸0.7%Si无取向硅钢。结果表明,铸带的显微组织为等轴晶,铸带表层主体织构为{223}<110>,s=0.5层主体织构为{110}<112>和{112}<132>,中心层主体织构为{001}<100>。冷轧板织构主要由较强的<110>//RD和较弱的<111>//ND织构组成。冷轧板经900℃退火后再结晶织构主要由{001}<100>,高斯织构和<111>//ND织构组成,新的立方晶粒易于在剪切带处形核,并在再结晶开始阶段长大成为退火后的主体织构。The evolution of microstructure and texture of strip-cast 0. 7% Si non-oriented electrical steel was investigated by optical microscope and electron backscattered diffraction（ EBSD）. The results show that the microstructure is composed of equiaxed grains. In the as-cast strip,the texture in the surface layer is mainly composed of { 223} 〈110〉 ,in the s = 0. 5 layer is { 110} 〈112〉 and { 112} 〈132〉 and in the center layer is { 001} 〈100〉 . The cold rolling texture is dominated by pronounced 〈110〉 / / RD and weak 〈111〉 / / ND texture. The final recrystallization texture is characterized by { 001} 〈100〉 ,Goss and 〈111〉 / / ND texture. The new Cube grains are mainly nucleated and grow within those shear bands at the beginning of recrystallization and consequently become the main component of annealing texture.

关 键 词：薄带连铸 织构 储能 无取向 硅钢 

分 类 号：TG142.77[一般工业技术—材料科学与工程]