Deformation twinning in polycrystalline Co during room temperature dynamic plastic deformation
Deformation twinning in polycrystalline Co during room temperature dynamic plastic deformation
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DOI：
10.1016/j.scriptamat.2010.04.031
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发表时间：
2010-08
影响因子：
6
通讯作者：
X. Y. Zhang;Y. Zhu;Q. Liu
中科院分区：
文献类型：
--
作者：
X. Y. Zhang;Y. Zhu;Q. Liu
应变速率对金属的变形有重要影响。动态塑性变形（DPD）导致面心立方多晶Cu通过孪生变形。在本文中，我们报告，六方密排多晶Co，变形孪晶在DPD是类似的，在正常压缩。在变形过程中会出现各种拉、压孪晶和双孪晶。结果还表明，同一晶粒内可以发生拉压孪生。
Strain rate has an important influence on the deformation of metals. Dynamic plastic deformation (DPD) causes a face-centered cubic polycrystalline Cu to deform by twinning. In this paper, we report that for hexagonal close-packed polycrystalline Co, deformation twinning during DPD is similar to that during normal compression. Various tension and compression twins, as well as double twins, take place during deformation. The results also show that the tension and compression twinning can take place in one grain.