摘要
应用光学显微镜以及X射线衍射仪,对35W300高牌号无取向硅钢热轧板、常化板、冷轧板和退火板的组织和织构进行表征。研究了35W300组织和织构的演变,结果表明:热轧板表层为细小的等轴晶,过渡层为条带状组织内混有细小等轴晶,中心层为条带状组织;表层存在一定含量的Goss和黄铜织构,1/4层和中心层主要为α-纤维织构和γ-纤维织构。常化板组织为等轴晶,平均晶粒尺寸为(109.1±10)μm;表层织构为Goss和黄铜织构,1/4层和中心层以α*-纤维织构为主。冷轧板组织包括剪切带和形变带;表层和中心层织构类似,均为α-纤维织构和γ-纤维织构。退火板组织为均匀的等轴晶,平均晶粒尺寸为(89.5±10)μm;表层和中心层织构类似,均为α*-纤维织构和γ-纤维织构。
The microstructure and texture of 35W300 high-grade non-oriented silicon steel in hot-rolled plate,normalized plate,cold-rolled plate,and annealed plate states were characterized using optical microscopy and X-ray diffraction.The evolution of microstructure and texture in 35W300 was investigated.The results indicate that:The hot-rolled plate exhibits fine equiaxed grains in the surface layer,a transition layer containing both banded structure and fine equiaxed grains,and a central layer with banded structure.The surface layer contains Goss and Brass textures,while the quarter-thickness layer and central layer primarily showα-fiber andγ-fiber textures.The normalized plate displays equiaxed grains with an average grain size of(109.1±10)μm.The surface texture consists of Goss and Brass components,whereas the quarter-thickness and central layers are dominated byα*-fiber texture.The cold-rolled plate microstructure contains shear bands and deformation bands.Both surface and central layers exhibit similar textures dominated byα-fiber andγ-fiber components.The annealed plate demonstrates homogeneous equiaxed grains with an average grain size of(89.5±10)μm.Both surface and central layers show similar textures characterized byα*-fiber andγ-fiber components.This systematic characterization reveals the progressive evolution of microstructure and texture through different processing stages,providing insights into the structure-property relationships of high-grade non-oriented silicon steel.
作者
陈建华
褚绍阳
周启航
郭飞虎
乔家龙
仇圣桃
CHEN Jianhua;CHU Shaoyang;ZHOU Qihang;GUO Feihu;QIAO Jialong;QIU Shengtao(Technology Center,Xinyu Iron and Steel Group Co.,Ltd.,Xinyu 338001,China;National Engineering Research Center of Continuous Casting Technology,Central Iron and Steel Research Institute,Beijing 100081,China)
出处
《电工钢》
2025年第4期1-6,共6页
ELECTRICAL STEEL
基金
江西省重大科研专项项目(20213AAE01009)。
关键词
高牌号无取向硅钢
组织
织构
演变
high grade non-oriented silicon steel
microstructure
texture
evolution
