摘要:
通过控制轧制过程中的粗轧终轧温度、精轧终轧温度及成品板的厚度,了解轧制过程中工艺参数对织构的影响及轧制过程中织构的演变规律。研究表明,当粗轧终轧温度从923℃降低到855℃时,{111}∥ND织构增强,有利于板材的最终性能;当精轧终轧温度由810℃降低到791℃时,不利的{113}<110>织构强度明显减弱,r值基本不变,有利于获得深冲性能优良的板材;当板厚由4.0 mm减薄到3.0 mm时,取向织构无明显变化,而相应的冷轧退火板,r值升高,r90达到3.2以上,|Δr|降低到0.08。
Abstract:
In this study,the effect of process parameters on the varieties and evolution of texture during rolling process were investigated by controlling the rough rolling temperature,finish rolling temperature and the thickness of finished products.The result shows that as the rough rolling temperature declines from 923 ℃ to 855 ℃,the intensity of { 111} ∥ND texture increases.Besides,when the finish rolling temperature declines from 810 ℃ to 791 ℃,the intensity of the unfavorable { 113} ＜ 110 ＞ texture is markedly weakened.All of these adjustments benefit to the good performance of ultimate sheet.when the thickness of finished products is reduced from 4.0 mm to 3.0 mm,the responding annealed cold-rolled sheet have a increasing r vaule with r90 exceeding 3.2 and |Δr| as low as 0.08.
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