利用扫描电镜、透射电镜和X射线技术研究了含铌铁素体不锈钢的微观组织、织构及晶界特征分布。结果表明,铌和钛的加入导致TiN和NbC的析出;冷轧试样的织构以α纤维为主,退火板的织构以γ纤维为主,这种织构的变化与晶界类型有密切关系。 The microstructure, texture and grain boundary distribution of niobium-containing ferritic stainless steel were investigated by scanning electron microscopy, transmission electron microscopy and X-ray diffraction. The results show that the addition of niobium and titanium leads to the precipitation of TiN and NbC. The texture of cold-rolled samples is dominated by α-fiber, and the texture of the annealed sheet is dominated by γ-fiber. close relationship.