Formation of multiple twins and their strengthening effect in nanocrystalline Cu/Zr multilayer films

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

doi:10.1016/j.msea.2012.01.046

Formation of multiple twins and their strengthening effect in nanocrystalline Cu/Zr multilayer films

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

School of Materials Science and Engineering

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

21 Scopus citations

Abstract

Multiple twins are experimentally observed within Cu grains in nanostructured Cu/Zr multilayer films. Formation of the multiple twins occurs through the sequential emission of partial dislocations not only from the grain boundaries but also from the Cu/Zr interfaces, which are driven by extremely high internal stresses and highly complex stress state caused by the inhomogeneous microstructures. The multilayers with multiple twins exhibit hardness higher than those with single or coplanar twins, indicative of a significant strengthening effect of the multiple twins.

Original language	English
Pages (from-to)	68-73
Number of pages	6
Journal	Materials Science and Engineering: A
Volume	539
DOIs	https://doi.org/10.1016/j.msea.2012.01.046
State	Published - 30 Mar 2012

Keywords

Formation mechanism
Multilayer films
Multiple twins
Strengthening effect

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10.1016/j.msea.2012.01.046

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title = "Formation of multiple twins and their strengthening effect in nanocrystalline Cu/Zr multilayer films",

abstract = "Multiple twins are experimentally observed within Cu grains in nanostructured Cu/Zr multilayer films. Formation of the multiple twins occurs through the sequential emission of partial dislocations not only from the grain boundaries but also from the Cu/Zr interfaces, which are driven by extremely high internal stresses and highly complex stress state caused by the inhomogeneous microstructures. The multilayers with multiple twins exhibit hardness higher than those with single or coplanar twins, indicative of a significant strengthening effect of the multiple twins.",

keywords = "Formation mechanism, Multilayer films, Multiple twins, Strengthening effect",

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

year = "2012",

month = mar,

day = "30",

doi = "10.1016/j.msea.2012.01.046",

language = "英语",

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TY - JOUR

T1 - Formation of multiple twins and their strengthening effect in nanocrystalline Cu/Zr multilayer films

AU - Niu, J. J.

AU - Zhang, P.

AU - Wang, R. H.

AU - Zhang, J. Y.

AU - Liu, G.

AU - Zhang, G. J.

AU - Sun, J.

PY - 2012/3/30

Y1 - 2012/3/30

N2 - Multiple twins are experimentally observed within Cu grains in nanostructured Cu/Zr multilayer films. Formation of the multiple twins occurs through the sequential emission of partial dislocations not only from the grain boundaries but also from the Cu/Zr interfaces, which are driven by extremely high internal stresses and highly complex stress state caused by the inhomogeneous microstructures. The multilayers with multiple twins exhibit hardness higher than those with single or coplanar twins, indicative of a significant strengthening effect of the multiple twins.

AB - Multiple twins are experimentally observed within Cu grains in nanostructured Cu/Zr multilayer films. Formation of the multiple twins occurs through the sequential emission of partial dislocations not only from the grain boundaries but also from the Cu/Zr interfaces, which are driven by extremely high internal stresses and highly complex stress state caused by the inhomogeneous microstructures. The multilayers with multiple twins exhibit hardness higher than those with single or coplanar twins, indicative of a significant strengthening effect of the multiple twins.

KW - Formation mechanism

KW - Multilayer films

KW - Multiple twins

KW - Strengthening effect

UR - https://www.scopus.com/pages/publications/84862812806

U2 - 10.1016/j.msea.2012.01.046

DO - 10.1016/j.msea.2012.01.046

M3 - 文章

AN - SCOPUS:84862812806

SN - 0921-5093

VL - 539

SP - 68

EP - 73

JO - Materials Science and Engineering: A

JF - Materials Science and Engineering: A

ER -

Formation of multiple twins and their strengthening effect in nanocrystalline Cu/Zr multilayer films

Abstract

Keywords

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