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研究了铁素体不锈钢在低温轧制过程中织构演变及γ纤维再结晶织构的形成机制。结果表明:1.冷轧退火板厚度方向各层织构特征存在显著差异,这主要是由于低温轧制过程中沿板厚方向不同应变状态导致的热轧织构悌度的遗传;2.热轧及退火后,表层织构以剪切织构组分为主,冷轧后得到主要组分集中在{112}<110>和{111}<110>的冷轧织构。因此,冷轧退火后形成不均匀的γ再结晶纤维织构。3.热轧及退火后,半厚度层及中心层织构以γ纤维织构为主,冷轧后得到与α纤维织构强度相近且主要组分集中在{111}<112>的γ纤维织构。因此,冷轧退火后形成均匀的-γ再结晶纤维织构。
The textural evolution of the ferritic stainless steel during low temperature rolling and the formation mechanism of γ-fiber recrystallization texture were studied. The results show that: 1. There are significant differences in the texture features of the layers in the thickness direction of the cold-rolled annealed sheets, mainly due to the inheritance of the hot-rolled texture due to the different strain states along the thickness direction in the low-temperature rolling; After rolling and annealing, the texture of the surface layer is dominated by the shear textures. After cold rolling, the cold rolled texture with the main components concentrated in {112} <110> and {111} <110> is obtained. Therefore, a non-uniform γ recrystallized fiber texture is formed after cold rolling annealing. After hot rolling and annealing, the γ-fiber texture of the semi-thickness layer and the center layer were mainly obtained, and the γ-fiber with the main components close to the {111} <112> Texture. Therefore, a uniform-gamma recrystallized fiber texture is formed after cold rolling annealing.