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Observation of pseudoelastic behavior in large Cu-Ni composite multilayer nanowires

Published online by Cambridge University Press:  20 February 2014

N. Abdolrahim ,
I.N. Mastorakos ,
D. Bahr  and
H.M. Zbib
N. Abdolrahim
Affiliation:
School of Mechanical and Materials Engineering Washington State University, Pullman, WA 99164
I.N. Mastorakos
Affiliation:
School of Mechanical and Materials Engineering Washington State University, Pullman, WA 99164
D. Bahr
Affiliation:
School of Materials Engineering, Purdue University, 701 West Stadium Avenue, West Lafayette IN 47907-2045
H.M. Zbib
Affiliation:
School of Mechanical and Materials Engineering Washington State University, Pullman, WA 99164
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Abstract

In recent years, studies have shown that single crystal metallic nanowires (NWs) can exhibit unique pseudoelastic behavior when their cross-sectional area is smaller than a certain critical value, which is on the order of a few nms. The mechanism responsible for this behavior is the formation of partial dislocations (twinning). In this paper we demonstrate using molecular dynamics simulations that thicker composite nanowires can exhibit pseudoelastic behavior at large cross-sectional dimensions to 28 nm and higher, as long as the individual layer thickness do not exceed a critical value of 1.8-2 nm, thus making their manufacturing feasible and more attractive.

Keywords

nanostructurecrystalmetal
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1659: Symposium SS/XX – Micro- and Nanoscale Systems – Novel Materials, Structures and Devices , 2014 , pp. 205 - 212
Copyright
Copyright © Materials Research Society 2014 

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References

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