冷轧工艺对3.28%Si硅钢组织织构和磁性能的影响  

Effect of cold rolling process on microstructure,texture and magnetic properties of 3.28%Si silicon steel

作　　者：姜世勇[1] 林媛[1] 张文康[1] JIANG Shiyong;LIN Yuan;ZHANG Wenkang(Technical Center,Shanxi Taigang Stainless Steel Co.,Ltd.,Taiyuan 030003,China)

机构地区：[1]山西太钢不锈钢股份有限公司技术中心,山西太原030003

出　　处：《电工钢》2023年第6期19-24,共6页ELECTRICAL STEEL

摘　　要：研究了大压下率一次冷轧、临界变形二次冷轧和中等压下率二次冷轧对3.28%Si高牌号无取向硅钢再结晶组织、织构和磁性能的影响。结果表明,80%大压下率一次冷轧晶粒尺寸最小,平均为103μm,均匀性较好;主要织构为{111}〈112〉,其次为{111}〈110〉;综合磁性能较好,P 1.5/50和B 50居中,P 1.5/50各向异性最小。9%临界压下率二次冷轧晶粒尺寸最大,平均为156μm,但有些晶粒尚未发生完全再结晶,均匀性最差;主要织构为{111}〈110〉和{112}面织构,同时高斯织构{110}〈001〉组分强度最弱;综合磁性能最差,P 1.5/50最高、B 50最低、P 1.5/50各向异性最大。50%中等压下率二次冷轧晶粒尺寸介于临界变形二次冷轧和大压下率一次冷轧之间,平均为112μm,均匀性最好;织构主要为{110}〈001〉和{100}面织构;综合磁性能最好,P 1.5/50最低、B 50最高、P 1.5/50各向异性居中。The effect of different cold rolling process with high reduction rate of primary cold rolling,critical deformation and moderate reduction rate of secondary cold rolling on recrystallization microstructure,textures and magnetic properties of 3.28%Si silicon steel were researched.The results showed that the steel in the process of 80%high reduction rate primary cold rolling had the smallest grain size and better grain uniformity,with the average grain size about 103μm,textures of mainly{111}〈112〉and next{111}〈110〉,and better comprehensive performances of better P 1.5/50 and better B 50 and the smallest anisotropy.In the process of 9%critical deformation,the grain size was the largest of about 156μm in average,but some grains did not finish complete recrystallization,so the grain uniformity was the worst,with the textures of mainly{111}〈110〉and{112}plane texture and the weakest{110}〈001〉texture,and the worst comprehensive performances of the highest P 1.5/50,the lowest B 50 and the biggest anisotropy.While in the process of 50%moderate reduction rate of secondary cold rolling,the steel’s grain size was in middle among the three cold rolling processes of about 112μm in average,and the grain uniformity was the best,with the textures of mainly{110}〈001〉and{100}plane texture and the best comprehensive performances of the lowest P 1.5/50,the highest B 50 and better anisotropy.

关 键 词：无取向电工钢 冷轧工艺 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] TG335.5[金属学及工艺—金属材料]