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中文摘要：
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。
英文摘要：
The through-thickness texture evolution and formation mechanism ofγ-fiber recrystallization texture in ultra-low C,N 17%Cr ferritic stainless steel during warm rolling were investigated. The results show that：1.The texture of the cold rolled and annealed sheet displayed pronounced through-thickness texture gradients that were inherited from the hot rolling texture gradients due to the variation of strong through-thickness strain states during warm rolling;2.After hot rolling and annealing the surface texture consists of a strong shear texture,and the textures with major components at {112}110 and {111}110 can be obtained after cold rolling.Therefore,the inhomogeneousγ-fiber recrystallization texture was formed after cold rolling and annealing;3.Theγ-fiber is the major component after the hot rolling and annealing at mid-section and 1/4-section,and after cold rollingγ-fiber with major component at {111}112 and the intensity close to that ofα-fiber can be obtained.Therefore,a uniformγ-fiber recrystallization texture was formed after cold rolling and annealing.
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