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使用背散射电子衍射(EBSD)和X射线衍射(XRD)技术,研究了Fe-1%Si无取向硅钢在热轧-卷取-冷轧-退火全流程中的微结构和织构演变。结果表明,卷取过程热轧板发生回复和晶粒长大,小角晶界含量降低,表层等轴晶和中心再结晶晶粒均发生长大;热轧组织经冷轧转变为带状。退火后成品为粗大等轴晶组织,小角晶界仅为17.81%。热轧-卷取-冷轧过程中,Fe-1%Si硅钢以α取向({hkl}<110>)轧制织构为主,卷取过程中α取向线强度略有降低,冷轧剧烈变形后增至最大值;退火后主要织构类型转变为γ取向({111})退火织构。
The microstructure and texture evolution of Fe-1% Si non-oriented silicon steel in the whole process of hot rolling-coiling-cold rolling-annealing was studied by backscattered electron diffraction (EBSD) and X-ray diffraction (XRD) The results show that the hot-rolled sheet in the coiling process reverts and grains grow, the content of small-angle grain boundaries decreases, and both the equiaxed grains and the recrystallized grains in the center grow up. The hot-rolled structure turns into strip shape by cold rolling. After annealing, the product is coarse equiaxed grain structure, small angle grain boundary is only 17.81%. In the hot-rolling-coiling-cold rolling process, the α-oriented ({hkl} <110>) rolling texture of Fe-1% Si silicon steel is dominant. The strength of α-orientation line slightly decreases during cold rolling, After the deformation increased to the maximum; after annealing the main texture type into γ orientation ({111} annealing texture.