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Anisotropic tensile ductility of cold-rolled and annealed aluminum alloy sheet and the beneficial effect of post-anneal rolling

机译:冷轧和退火铝合金板的各向异性拉伸延展性及退火后轧制的有益效果

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摘要

The tensile behavior of an aluminum alloy sheet after heavy cold rolling and recovery annealing is highly anisotropic. The poor ductility of recovery-annealed specimens tested at 45 deg with respect to the rolling direction could be attributed to a strong rolling texture and the flow localization associated with intense shear banding, which was triggered by the yielding phenomenon. By applying post-anneal cold rolling, the yielding phenomenon was removed and the problem of ductility anisotropy was reduced significantly.
机译:重冷轧和恢复退火后的铝合金薄板的拉伸行为是高度各向异性的。相对于轧制方向在45度下进行测试的恢复退火试样的延展性较差,这可能归因于强大的轧制织构以及与强烈剪切带相关的流动局部化,这是由屈服现象引发的。通过进行退火后冷轧,消除了屈服现象,并显着降低了延性各向异性的问题。

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