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首页> 外文期刊>Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics >Microstructural and textural evolution of AZ31 magnesium alloy during differential speed rolling
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Microstructural and textural evolution of AZ31 magnesium alloy during differential speed rolling

机译：AZ31镁合金差速轧制过程中的组织和组织演变

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摘要

The microstructural and textural evolution of the hot-extruded AZ31 alloy plate during differential speed rolling (DSR) has been investigated. For the hot-extruded plate, a large texture gradient exists in the thickness direction while the grain size distribution is nearly homogenous. The textural evolutions at near-surface and mid-layer regions are different between the DSR processed and the normal symmetric rolled sheets. The inclination of basal pole at the mid-layer increases at an accelerating rate with progress of the DSR processing due to the enhancement of the unidirectional shear bands. The deformation tends to concentrate on the previously formed shear bands, which exhibit a favored crystalline orientation for further shear localization.
机译：研究了差速轧制（DSR）过程中热挤压AZ31合金板的组织和组织演变。对于热挤压板，在厚度方向上存在大的组织梯度，而晶粒尺寸分布几乎是均匀的。经过DSR处理的和正常的对称轧制板在近表面和中层区域的组织演变是不同的。由于单向剪切带的增强，随着DSR处理的进行，中层基极的倾斜度以加速的速率增加。变形倾向于集中在先前形成的剪切带上，该剪切带表现出有利的晶体取向以用于进一步的剪切局部化。

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