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首页> 外文会议>International Conference on Processing amp; Manufacturing of Advanced Materials Pt.5; Jul 7-11, 2003; Leganes, Madrid, Spain >Mathematical Modeling of the Mean Flow Stress during the Hot Strip Rolling of Ti-Nb IF Steels
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Mathematical Modeling of the Mean Flow Stress during the Hot Strip Rolling of Ti-Nb IF Steels

机译：Ti-Nb IF钢热轧过程中平均流动应力的数学模型

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摘要

Logs of hot strip mill processing of Ti-Nb IF steels were examined so that the mean flow stresses at each pass were calculated. The computation of the mean flow stress was carried out using the Sims equation and taking into account the forward slip ratio, the redundant strain and the work roll flattening. The mean flow stresses are compared to predicted values obtained from a model. As strip rolling is carried out with decreasing pass interval and increasing strain rates, the interpass times ranges from two to four seconds between the first and the second stands to a few tenths of a second between the last two stands. The present model takes into account the occurrence of softening by dynamic recrystallization. The predictions of the mean flow stresses during rolling obtained from the simulations are in good agreement with the data set obtained from the logs.
机译：检查了Ti-Nb IF钢的热轧带钢加工的原木，从而计算出每道次的平均流动应力。平均流量应力的计算使用Sims方程，并考虑了前滑比，冗余应变和工作辊压扁。将平均流应力与从模型获得的预测值进行比较。当带钢轧制以减小的通过间隔和增加的应变速率进行时，通过时间介于第一和第二机架之间的2到4秒到最后两个机架之间的十分之几秒。本模型考虑了由于动态再结晶而发生的软化。从模拟获得的轧制过程中平均流应力的预测与从测井获得的数据集非常吻合。

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