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首页> 外文期刊>ISIJ international >Enhanced Homogeneity of a Flat-rolled Wire in Twinning-induced Plasticity Steel Using the Pass Schedule Design
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Enhanced Homogeneity of a Flat-rolled Wire in Twinning-induced Plasticity Steel Using the Pass Schedule Design

机译：使用PASS日程表设计增强了孪晶诱导的塑性钢中的扁平轧制线的均匀性

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The effects of reduction in height per pass, roll diameter, and friction coefficient on the homogeneity of mechanical properties and shape change in flat-rolled twinning-induced plasticity steel wire were investigated. The goal was to improve the homogeneity of mechanical properties of a wire with area during flat rolling process using a numerical simulation, a hardness test, and electron backscatter diffraction techniques. Reduction in height per pass and roll diameter had large influences on both strain inhomogeneity and lateral spread of flat-rolled wire. Strain inhomogeneity and lateral spread increased with increasing the reduction in height per pass and roll diameter due to the higher length of the contact area. The underlying mechanism for the strain inhomogeneity and lateral spread of flat-rolled wire was highly related to the length of contact area. Hence, the length of the contact area needed reduction through controlling process conditions to improve the strain homogeneity of the flat-rolled wire. The effect of friction coefficient on lateral spread was negligible, whereas strain inhomogeneity slightly increased with friction coefficient. The combination of high and low reduction in height per pass with a smaller roll diameter improved the homogeneity of mechanical properties and microstructure over the area of the flat-rolled wire. Based on the results of numerical simulation and experimental test, a new practical strategy is proposed to achieve greater homogeneity of mechanical properties over the area of flat-rolled wire, which could be of great applicability in industrial fields.
机译：研究了每次通过的高度，辊直径和摩擦系数对机械性能的均匀性和扁平滚动的孪晶诱导的塑性钢丝均匀性的效果。目标是通过数值模拟，硬度测试和电子反向散射衍射技术改善扁平轧制工艺中具有面积的导线的机械性能的均匀性。每次通过的高度的减小和辊径对扁平轧制线的应变不均匀性和横向扩散具有很大的影响。随着接触面积长度的较高长度，应变不均匀性和横向扩散随着每次通过的高度和辊直径的减小而增加。扁平轧制线的应变不均匀性和横向扩散的潜在机理与接触面积的长度高度相关。因此，通过控制工艺条件来降低接触面积的长度以改善扁平轧制线的应变均匀性。摩擦系数对横向扩散的影响可忽略不计，而菌株的不均匀性略有增加摩擦系数。每次通过的高度和低的高度的组合具有较小的辊直径改善了扁平轧制线区域的机械性能和微观结构的均匀性。基于数值模拟和实验测试的结果，提出了一种新的实际策略，以实现扁平轧制线面积的机械性能的更大均匀性，这在工业领域可能具有很大的适用性。

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