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Interpretation of Hot Rolling and Cold Rolling Texture in High Purity Aluminium

机译:高纯铝热轧和冷轧织构的解释

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In high purity aluminium two different types of hot band textures were produced by changing the final hot rolling temperatures. The texture of the hot bands was found to be inhomogeneous through thickness. The strong preferred orientation of {001}<110> developed in the surface layer of the hot band which had been rolled at the higher finishing temperature. For the lower finishing temperature sample, the cold rolling type of texture was formed in the hot band. The cold rolling texture was dependent on the initial hot rolling texture. The hot band which had strong {001}<110> at the surface layer led to the maximum orientation density at {4411}<11118> after the subsequent cold rolling. Preferred orientations near {123}<634> in the hot band caused the maximum at {123}<634> in the cold rolling texture. The experimental results were discussed based on the simulation test of deformation texture in which the rotation of orientations was calculated from the Taylor model. In this calculation, the strain state of the deformation zone in the rolling gap is assumed to vary with shears induced from the geometry and the friction.
机译:在高纯度铝中,通过改变最终的热轧温度产生两种不同类型的热轧带织构。发现热带的质地在厚度上是不均匀的。 {001} <110>的强优选取向在热轧带材的表面层中形成,该热轧带材在较高的精轧温度下轧制。对于较低的精加工温度样品,在热轧带中形成了冷轧型织构。冷轧织构取决于初始热轧织构。在随后的冷轧之后,在表层具有强{001} <110>的热带导致{4411} <11118>处的最大取向密度。热轧带中{123} <634>附近的首选取向导致冷轧织构中的{123} <634>达到最大值。基于变形纹理的模拟测试讨论了实验结果,其中根据泰勒模型计算方向的旋转。在该计算中,假定轧制间隙中变形区的应变状态随几何形状和摩擦力引起的切变而变化。

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