| 查看: 126 | 回复: 1 | |||
| 当前主题已经存档。 | |||
[资源]
Dynamics of shear localization and stress relaxation in amorphous Cu50Ti50
|
|||
|
Dynamics of shear localization and stress relaxation in amorphous Cu50Ti50 M. Neudecker, a, and S.G. Mayra, aI. Physikalisches Institut, Georg-August-Universität Göttingen, Friedrich-Hund-Platz 1, 37077 Göttingen, Germany Received 24 October 2008; revised 17 November 2008; accepted 18 November 2008. Available online 30 December 2008. Abstract Dynamic heterogeneities in metallic glasses are investigated for the model glass Cu50Ti50 with the help of classical molecular dynamics computer simulations. By rapid quenching from melt at various cooling rates (spanning five orders of magnitude), differently relaxed amorphous cells are prepared. During subsequent shearing at , we observe a series of highly localized shear events, termed shear transformation zones (STZs). Detailed analysis focuses on the dynamics of STZ formation and the correlation with local properties. We identify a local mechanical stress bias as the physical origin of STZ formation during low-temperature shear deformation. Keywords: MD-simulations; Metallic glasses; Deformation inhomogeneities; Low-temperature deformation http://www.sciencedirect.com/science?_ob=MImg&_imagekey=B6TW8-4V8D8T3-3-9&_cdi=5556&_user=2307902&_orig=browse&_coverDate=12%2F30%2F2008&_sk=999999999&view=c&wchp=dGLbVlz-zSkzk&md5=242e2f4be77fc099ec8e8ac8f62664db&ie=/sdarticle.pdf |
回复此楼» 猜你喜欢
有没有人能给点建议
已经有5人回复
-
假如你的研究生提出不合理要求
已经有12人回复
-
实验室接单子
已经有7人回复
-
全日制（定向）博士
已经有5人回复
-
萌生出自己或许不适合搞科研的想法，现在跑or等等看？
已经有4人回复
-
Materials Today Chemistry审稿周期
已经有4人回复
-
参与限项
已经有3人回复
-
对氯苯硼酸纯化
已经有3人回复
-
所感
已经有4人回复
-
要不要辞职读博？
已经有7人回复
2楼2009-01-05 09:09:54