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首页> 外文期刊>Philosophical Magazine Letters >Deformation twinning-mediated pseudoelasticity in metal-graphene nanolayered membrane
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Deformation twinning-mediated pseudoelasticity in metal-graphene nanolayered membrane

机译:金属 - 石墨烯纳米膜中的变形孪晶介导的假性痉挛

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In this study, we investigated the deformation behaviour of metal-graphene nanolayered composites for five face-centred cubic metals under compression using molecular dynamics simulations. It was found that by increasing the thickness of the individual metal layers, the composite strength increased, while the deformation mechanism changed from buckling to deformation twining in Cu, Au and Ag, which was absent in the monolithic form of those metals of the same orientation and size. The deformation twinning was found to be enabled by the graphene layer, which introduced pseudoelasticity and shape memory effects in the nanolayered membrane with more than 15% recoverable compressive strain.
机译:在这项研究中,我们研究了使用分子动力学模拟在压缩下为五个以中心的立方金属进行金属 - 石墨烯纳米复合材料的变形行为。 结果发现,通过增加各金属层的厚度,复合强度增加,而变形机构从屈曲以变形,以在Cu,Au和Ag中的变形缠绕,这在相同定向的那些金属的整体形式中不存在 和大小。 发现变形孪晶由石墨烯层能够引入纳米膜中的伪弹性和形状记忆效果,其具有超过15%可恢复的压缩菌株。

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