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首页> 外文期刊>Journal of Materials Engineering and Performance >Effect of Change in Strain Path During Cold Rolling on the Evolution of Microstructure and Texture in Al and Al-2.5%Mg
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Effect of Change in Strain Path During Cold Rolling on the Evolution of Microstructure and Texture in Al and Al-2.5%Mg

机译：冷轧过程中应变路径的变化对Al和Al-2.5％Mg合金组织和织构演变的影响

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摘要

The effect of change in strain path during cold rolling on the evolution of microstructure and texture is investigated. For this purpose, high purity aluminum and Al-2.5%Mg alloy are deformed (～90% reduction in thickness) by unidirectional and cross cold rolling. Irrespective of the alloy system, copper-type texture is observed in unidirectional processed materials, while strong brass ({011}<112>) texture is developed during cross rolling. Unidirectionally rolled aluminum showed higher HAGB fraction, but similar HAGB spacing as compared to the cross-rolled aluminum after 90% reduction in thickness. At the same time, the internal misorientation in the cross-rolled 2N-Al is higher than in the unidirectionally rolled material. In contrast, Al-2.5% Mg alloy processed differently in both ways shows similar HAGB fraction, spacing, and internal misorientation distribution. These observations indicate that microstructure evolution due to strain path change is more strongly affected by dynamic recovery as compared to texture evolution.
机译：研究了冷轧过程中应变路径的变化对组织和组织演变的影响。为此，高纯度铝和Al-2.5％Mg合金会通过单向和交叉冷轧而变形（厚度减少约90％）。无论合金体系如何，在单向加工材料中均会观察到铜型织构，而在交叉轧制过程中会形成强黄铜（{011} <112>）织构。单向轧制铝在厚度减少90％之后显示出更高的HAGB分数，但与交叉轧制铝相比具有相似的HAGB间距。同时，交叉轧制的2N-Al的内部取向差高于单向轧制的材料。相反，以两种方式不同处理的Al-2.5％Mg合金显示出相似的HAGB分数，间距和内部取向差分布。这些观察结果表明，与应变演化相比，由于应变路径变化而引起的微结构演化受动态恢复的影响更大。

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