Twin stability in highly nanotwinned Cu under compression, torsion and tension

A. M. Hodge; T. A. Furnish; C. J. Shute; Y. Liao; X. Huang; C. S. Hong; Y. T. Zhu; T. W. Barbee; J. R. Weertman

doi:10.1016/j.scriptamat.2012.01.027

Twin stability in highly nanotwinned Cu under compression, torsion and tension

A. M. Hodge^*, T. A. Furnish, C. J. Shute, Y. Liao, X. Huang, C. S. Hong, Y. T. Zhu, T. W. Barbee, J. R. Weertman

^*Corresponding author for this work

MRC - Materials Research Center

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

63 Scopus citations

Abstract

Twin stability under four distinct mechanical loading states has been investigated for highly nanotwinned Cu containing parallel nanotwins ∼40 nm thick. Observed deformation-induced microstructural changes under tension, compression, tension-tension fatigue and torsion are qualitatively compared in order to assess twin stability as a function of the loading direction and stress. It is observed that the twins are very stable although small microstructural changes vary with deformation mode. Shear bands, deformation-induced grain growth and detwinning are also discussed.

Original language	English (US)
Pages (from-to)	872-877
Number of pages	6
Journal	Scripta Materialia
Volume	66
Issue number	11
DOIs	https://doi.org/10.1016/j.scriptamat.2012.01.027
State	Published - Jun 2012

Keywords

Copper
Nanostructure
Nanotwinned
Plastic deformation

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Metals and Alloys

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10.1016/j.scriptamat.2012.01.027

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@article{24b2c28d8dd94c928625eb7a1fe6beb7,

title = "Twin stability in highly nanotwinned Cu under compression, torsion and tension",

abstract = "Twin stability under four distinct mechanical loading states has been investigated for highly nanotwinned Cu containing parallel nanotwins ∼40 nm thick. Observed deformation-induced microstructural changes under tension, compression, tension-tension fatigue and torsion are qualitatively compared in order to assess twin stability as a function of the loading direction and stress. It is observed that the twins are very stable although small microstructural changes vary with deformation mode. Shear bands, deformation-induced grain growth and detwinning are also discussed.",

keywords = "Copper, Nanostructure, Nanotwinned, Plastic deformation",

author = "Hodge, {A. M.} and Furnish, {T. A.} and Shute, {C. J.} and Y. Liao and X. Huang and Hong, {C. S.} and Zhu, {Y. T.} and Barbee, {T. W.} and Weertman, {J. R.}",

note = "Funding Information: Parts of this work were performed under the auspices of the US Department of Energy at Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344, at USC under NSF grant number DMR-0955338 . At Northwestern University, shared facilities at the Materials Research Center were used supported by the MRSEC Program of the National Science Foundation ( DMR-0520513 ). X.H. and C.S.H. were supported by the Danish National Research Foundation. ",

year = "2012",

month = jun,

doi = "10.1016/j.scriptamat.2012.01.027",

language = "English (US)",

volume = "66",

pages = "872--877",

journal = "Scripta Materialia",

issn = "1359-6462",

publisher = "Elsevier Limited",

number = "11",

}

TY - JOUR

T1 - Twin stability in highly nanotwinned Cu under compression, torsion and tension

AU - Hodge, A. M.

AU - Furnish, T. A.

AU - Shute, C. J.

AU - Liao, Y.

AU - Huang, X.

AU - Hong, C. S.

AU - Zhu, Y. T.

AU - Barbee, T. W.

AU - Weertman, J. R.

N1 - Funding Information: Parts of this work were performed under the auspices of the US Department of Energy at Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344, at USC under NSF grant number DMR-0955338 . At Northwestern University, shared facilities at the Materials Research Center were used supported by the MRSEC Program of the National Science Foundation ( DMR-0520513 ). X.H. and C.S.H. were supported by the Danish National Research Foundation.

PY - 2012/6

Y1 - 2012/6

N2 - Twin stability under four distinct mechanical loading states has been investigated for highly nanotwinned Cu containing parallel nanotwins ∼40 nm thick. Observed deformation-induced microstructural changes under tension, compression, tension-tension fatigue and torsion are qualitatively compared in order to assess twin stability as a function of the loading direction and stress. It is observed that the twins are very stable although small microstructural changes vary with deformation mode. Shear bands, deformation-induced grain growth and detwinning are also discussed.

AB - Twin stability under four distinct mechanical loading states has been investigated for highly nanotwinned Cu containing parallel nanotwins ∼40 nm thick. Observed deformation-induced microstructural changes under tension, compression, tension-tension fatigue and torsion are qualitatively compared in order to assess twin stability as a function of the loading direction and stress. It is observed that the twins are very stable although small microstructural changes vary with deformation mode. Shear bands, deformation-induced grain growth and detwinning are also discussed.

KW - Copper

KW - Nanostructure

KW - Nanotwinned

KW - Plastic deformation

UR - http://www.scopus.com/inward/record.url?scp=84862789179&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84862789179&partnerID=8YFLogxK

U2 - 10.1016/j.scriptamat.2012.01.027

DO - 10.1016/j.scriptamat.2012.01.027

M3 - Article

AN - SCOPUS:84862789179

SN - 1359-6462

VL - 66

SP - 872

EP - 877

JO - Scripta Materialia

JF - Scripta Materialia

IS - 11

ER -

Twin stability in highly nanotwinned Cu under compression, torsion and tension

Abstract

Keywords

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