Deformation twinning-mediated pseudoelasticity in metal-graphene nanolayered membrane

被引：28

作者：

Rezaei, Reza ^{[1
]}

Deng, Chuang ^{[2
]}

Tavakoli-Anbaran, Hossein ^{[3
]}

Shariati, Mahmoud ^{[4
]}

机构：

[1] Shahrood Univ Technol, Fac Mech Engn, Shahrood, Iran

[2] Univ Manitoba, Dept Mech Engn, Winnipeg, MB, Canada

[3] Shahrood Univ Technol, Fac Phys, Shahrood, Iran

[4] Ferdowsi Univ Mashhad, Dept Mech Engn, Fac Engn, Mashhad, Iran

来源：

PHILOSOPHICAL MAGAZINE LETTERS | 2016年 / 96卷 / 08期

关键词：

Nanolayered membrane; graphene; deformation twinning; shape memory effect; molecular dynamics simulations; INTERATOMIC POTENTIALS APPROPRIATE; ENHANCED MECHANICAL-PROPERTIES; FCC METALS; GRAIN-BOUNDARY; COMPOSITES; SIMULATION; NANOWIRES; DYNAMICS; SLIP; TWINNABILITY;

D O I：

10.1080/09500839.2016.1216195

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

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.

引用

页码：322 / 329

页数：8

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