摘 要：采用ODF法研究和分析了润滑剂对高纯铝冷轧形变织构的影响，揭示了两种润滑条件下形变织构的演变规律。结果表明：大冷轧变形程度下，采用机油润滑，形变织构为典型的面心立方金属的轧制织构，即由强的 B-、Cu-及S-织构组分构成，而且取向分布的密度峰值处在 S 取向位置；煤油润滑时轧制织构相对较弱，但Cu织构最强，同时产生了明显的剪切织构｛001｝〈110〉(Rot.Cube-织构)。采用机油润滑时，轧制变形比较均匀。低变形轧制时晶粒取向聚集于α线，随变形量增加，向β线取向聚集，最终形成铜型轧制织构；而煤油粘度小，轧制过程中接触表面摩擦系数较大，不均匀变形严重，低轧制程度时发现有表面剪切Rot.Cube-织构， 随着塑性变形增加，Rot.Cube-织构逐渐向Cu-取向转化；变形至95％后，随着变形程度增加，S-织构减弱。
Abstract: The influence of the cold rolling lubricants on the deformation texture in high purity Al was investigated in detail by ODF 's. The results show that the foil which is deformed at room temperature at high reduction with machine oil lubrication has developed the typical rolling textures of FCC metals， which consist of B-， Cu- and S-component， and the maximum peak of the orientation density f (g)trends towards S position; in the case of the kerosene lubricant， however， the rolling textures were comparatively weak， and at the same time the shear texture ｛001｝〈110〉is developed. The rolling deformation was much more homogeneous and the shear strain was lower on the condition of machine oil lubricant because of its high viscosity. The grain orientations gathered around α-fibre at low reduction and shifted towards β-fibre with increasing reduction. At high reduction the final texture became the coppertype rolling texture of FCC metals. Comparatively， the viscosity of kerosene is much lower， the coefficient of friction between the roller and the metal surface is higher during rolling， and it results in the inhomogeneous deformation. At lower reduction the shear texture(Rot.Cube texture) in the rolled surface of the foil appeared， the Rot. Cube-orientation shifted towards Cu orientation with increasing reduction.
Influence of lubricants on deformation textures in high purity Al
Abstract：
The influence of the cold rolling lubri cants on the deformation texture in high purity Al was investigated in detail by ODF 's. The results show that the foil which is deforme d at room temperature at high reduction with machine oil lubrication has develop ed the typical rolling textures of FCC metals, which consist of B , Cu and S co mponent, and the maximum peak of the orientation density f (g) trends towa rds S position; in the case of the kerosene lubricant, however, the roll ing textur es were comparatively weak, and at the same time the shear texture {001}<110> is de veloped. The rolling deformation was much more homogeneous and the shear strain was lower on the condition of machine oil lubricant because of its high viscosit y. The grain orientations gathered around α fibre at low reduction and shift ed tow ards β fibre with increasing reduction. At high reduction the final tex ture became the copper type rolling texture of FCC metals. Comparatively, the vis cosi ty of kerosene is much lower, the coefficient of friction between the roller a nd the metal surface is higher during rolling, and it results in the inhomogeneous de fo rmation. At lower reduction the shear texture (Rot.Cube texture) in the rolled su rface of the foil appeared, the Rot. Cube orientation shifted towards Cu or ientation with increasing reduction.
