Enhanced mechanical properties of columnar grained-nanotwinned Cu films on compliant substrate via multilayer scheme

J. Y. Zhang; P. Zhang; R. H. Wang; G. Liu; G. J. Zhang; J. Sun

doi:10.1016/j.msea.2012.06.023

Enhanced mechanical properties of columnar grained-nanotwinned Cu films on compliant substrate via multilayer scheme

J. Y. Zhang
, P. Zhang
, R. H. Wang
, G. Liu
, G. J. Zhang
, J. Sun

School of Materials Science and Engineering

Xi'an University of Technology

Research output: Contribution to journal › Article › peer-review

14 Scopus citations

Abstract

The columnar-grained nanotwinned (cg-nt) Cu films exhibit high strength but low ductility. By introducing the nanocrystalline Cr layers into cg-nt-Cu films forming Cu/Cr nanostructured multilayers, it is found that the number of twins per grain in Cu as well as the twins density decreases with reducing Cu layer thickness, which are analyzed by "growth accident" related twins formation models. The suppression of twin formation via multilayer scheme significantly enhanced the ductility of cg-nt-Cu films without sacrificing their strength.

Original language	English
Pages (from-to)	116-121
Number of pages	6
Journal	Materials Science and Engineering: A
Volume	554
DOIs	https://doi.org/10.1016/j.msea.2012.06.023
State	Published - 30 Sep 2012

Keywords

Ductility
Nanostructured multilayers
Thin films
Twins

Access to Document

10.1016/j.msea.2012.06.023

Cite this

@article{81f47ce8ed8145fb8d33e1d6b8229f97,

title = "Enhanced mechanical properties of columnar grained-nanotwinned Cu films on compliant substrate via multilayer scheme",

abstract = "The columnar-grained nanotwinned (cg-nt) Cu films exhibit high strength but low ductility. By introducing the nanocrystalline Cr layers into cg-nt-Cu films forming Cu/Cr nanostructured multilayers, it is found that the number of twins per grain in Cu as well as the twins density decreases with reducing Cu layer thickness, which are analyzed by {"}growth accident{"} related twins formation models. The suppression of twin formation via multilayer scheme significantly enhanced the ductility of cg-nt-Cu films without sacrificing their strength.",

keywords = "Ductility, Nanostructured multilayers, Thin films, Twins",

author = "Zhang, \{J. Y.\} and P. Zhang and Wang, \{R. H.\} and G. Liu and Zhang, \{G. J.\} and J. Sun",

year = "2012",

month = sep,

day = "30",

doi = "10.1016/j.msea.2012.06.023",

language = "英语",

volume = "554",

pages = "116--121",

journal = "Materials Science and Engineering: A",

issn = "0921-5093",

publisher = "Elsevier Ltd",

}

TY - JOUR

T1 - Enhanced mechanical properties of columnar grained-nanotwinned Cu films on compliant substrate via multilayer scheme

AU - Zhang, J. Y.

AU - Zhang, P.

AU - Wang, R. H.

AU - Liu, G.

AU - Zhang, G. J.

AU - Sun, J.

PY - 2012/9/30

Y1 - 2012/9/30

N2 - The columnar-grained nanotwinned (cg-nt) Cu films exhibit high strength but low ductility. By introducing the nanocrystalline Cr layers into cg-nt-Cu films forming Cu/Cr nanostructured multilayers, it is found that the number of twins per grain in Cu as well as the twins density decreases with reducing Cu layer thickness, which are analyzed by "growth accident" related twins formation models. The suppression of twin formation via multilayer scheme significantly enhanced the ductility of cg-nt-Cu films without sacrificing their strength.

AB - The columnar-grained nanotwinned (cg-nt) Cu films exhibit high strength but low ductility. By introducing the nanocrystalline Cr layers into cg-nt-Cu films forming Cu/Cr nanostructured multilayers, it is found that the number of twins per grain in Cu as well as the twins density decreases with reducing Cu layer thickness, which are analyzed by "growth accident" related twins formation models. The suppression of twin formation via multilayer scheme significantly enhanced the ductility of cg-nt-Cu films without sacrificing their strength.

KW - Ductility

KW - Nanostructured multilayers

KW - Thin films

KW - Twins

UR - https://www.scopus.com/pages/publications/84864104165

U2 - 10.1016/j.msea.2012.06.023

DO - 10.1016/j.msea.2012.06.023

M3 - 文章

AN - SCOPUS:84864104165

SN - 0921-5093

VL - 554

SP - 116

EP - 121

JO - Materials Science and Engineering: A

JF - Materials Science and Engineering: A

ER -

Enhanced mechanical properties of columnar grained-nanotwinned Cu films on compliant substrate via multilayer scheme

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this