Texture selection mechanisms in uniaxially extruded magnesium alloys
Texture selection mechanisms in uniaxially extruded magnesium alloys
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DOI：
10.1016/j.scriptamat.2010.01.018
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发表时间：
2010-10-01
影响因子：
6
通讯作者：
Beer, A.
中科院分区：
文献类型：
--
作者：
Barnett, M. R.;Sullivan, A.;Beer, A.
由于挤压织构对屈服不对称性的影响，镁合金的挤压织构引起了人们的极大关注。本工作描述了在挤压过程中可能起作用的三种织构选择机制。这些机制包括晶级变形的局部化差异、晶界鼓起和剪切带所经历的局部环境的变化。这项工作采用了粘塑性晶体塑性和电子背散射衍射。(C)2010年Acta Materialia Inc.由爱思唯尔有限公司出版。版权所有。
Extrusion textures in magnesium alloys are of high interest due to their influence on yield asymmetry. The present work describes three mechanisms of texture selection that may play a role during extrusion. These mechanisms involve localized differences in deformation at the grain level, the change in local environment experienced by grain boundary bulges and shear banding. The work employs visco-plastic crystal plasticity and electron backscattering diffraction. (C) 2010 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.