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首页> 外文会议>International Conference on Processing amp; Manufacturing of Advanced Materials Pt.4; Jul 7-11, 2003; Leganes, Madrid, Spain >Influence of Repeating of Partial Annealing and Light Rolling Process on Cube Texture in High Purity Aluminum
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Influence of Repeating of Partial Annealing and Light Rolling Process on Cube Texture in High Purity Aluminum

机译：重复进行部分退火和光轧工艺对高纯铝中立方晶格织构的影响

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摘要

To obtain strong cube texture in aluminum, the Pechiney process in which partial annealing and light rolling are inserted before final annealing is effective. In addition to one cycle partial annealing and light rolling, one or two cycles lead to the formation of stronger cube texture in AA3004 alloy. In this study, the effect of three-cycle process was investigated in high purity aluminum foil for electrolytic capacitor by X-ray diffraction and optical microscopy. To detect cube texture, transmission Laue method was used. As the cycles of partial annealing and light rolling increases, the formation of recrystallized grains with R-orientation was suppressed and sharpness of cube texture was intensified. By three-cycle process, sharp cube texture with orientational spread around RD was obtained. Orientational spread around RD was not uniform in the specimen but have gradient along transverse direction, being most pronounced at the specimen edges. This suggests that cube-oriented grains formed during partial annealing rotate during light rolling and preferentially grow by final annealing. Strong cube texture formation was ascribed to the ease of recovery in rolled cube orientation and to reluctance of recrystallization in deformation structure in which rolling texture was retained during partial annealing.
机译：为了在铝中获得牢固的立方织构，在最终退火之前插入部分退火和轻轧的Pechiney工艺是有效的。除了一个循环的部分退火和轻轧之外，一个或两个循环还可以在AA3004合金中形成更坚固的立方织构。在这项研究中，通过X射线衍射和光学显微镜研究了三周期过程对电解电容器用高纯度铝箔的影响。为了检测立方体纹理，使用了透射劳厄法。随着部分退火和轻轧的周期增加，具有R取向的再结晶晶粒的形成受到抑制，并且立方织构的清晰度增强。通过三循环过程，获得了锐利的立方织构，其定向分布在RD周围。 RD周围的方向扩展在样品中不是均匀的，而是沿横向具有梯度，在样品边缘最为明显。这表明在部分退火过程中形成的立方取向晶粒在轻轧过程中旋转，并且优先通过最终退火而生长。强烈的立方织构形成归因于轧制的立方取向的恢复容易性以及在部分退火期间保持轧制织构的变形结构中不愿再结晶。

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