High-pressure torsion of copper samples containing columns of highly aligned nanotwins

C. J. Shute; B. D. Myers; Y. Liao; S. Y. Li; A. M. Hodge; T. w. Barbee; Y. T. Zhu; J. R. Weertman

doi:10.1016/j.scriptamat.2011.08.004

High-pressure torsion of copper samples containing columns of highly aligned nanotwins

C. J. Shute, B. D. Myers, Y. Liao, S. Y. Li, A. M. Hodge, T. w. Barbee, Y. T. Zhu, J. R. Weertman^*

^*Corresponding author for this work

MRC - Materials Research Center

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

10 Scopus citations

Abstract

Copper disks containing columns of aligned nanotwins were subjected to high-pressure torsion (HPT) involving a half turn under a 3 GPa compressive stress. The overall shear strain of 21 at 1 mm from the center of rotation is concentrated at the surfaces, where the columns of twins have been transformed into a 3-D grain structure to a depth of about 5 μm. The remaining columns of twins were sheared in the direction of the shear stress with little rotation of the twin boundaries.

Original language	English (US)
Pages (from-to)	899-902
Number of pages	4
Journal	Scripta Materialia
Volume	65
Issue number	10
DOIs	https://doi.org/10.1016/j.scriptamat.2011.08.004
State	Published - Nov 2011

Funding

The authors thank W.W. Jian for carrying out the HPT deformation. This work made use of shared facilities supported by the MRSEC Program of the National Science Foundation ( DMR-020513 ) at the Materials Research Center of Northwestern University.

Keywords

Copper
Deformation structures
High-pressure torsion
Nanotwins

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Metals and Alloys

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10.1016/j.scriptamat.2011.08.004

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title = "High-pressure torsion of copper samples containing columns of highly aligned nanotwins",

abstract = "Copper disks containing columns of aligned nanotwins were subjected to high-pressure torsion (HPT) involving a half turn under a 3 GPa compressive stress. The overall shear strain of 21 at 1 mm from the center of rotation is concentrated at the surfaces, where the columns of twins have been transformed into a 3-D grain structure to a depth of about 5 μm. The remaining columns of twins were sheared in the direction of the shear stress with little rotation of the twin boundaries.",

keywords = "Copper, Deformation structures, High-pressure torsion, Nanotwins",

author = "Shute, {C. J.} and Myers, {B. D.} and Y. Liao and Li, {S. Y.} and Hodge, {A. M.} and Barbee, {T. w.} and Zhu, {Y. T.} and Weertman, {J. R.}",

note = "Funding Information: The authors thank W.W. Jian for carrying out the HPT deformation. This work made use of shared facilities supported by the MRSEC Program of the National Science Foundation ( DMR-020513 ) at the Materials Research Center of Northwestern University.",

year = "2011",

month = nov,

doi = "10.1016/j.scriptamat.2011.08.004",

language = "English (US)",

volume = "65",

pages = "899--902",

journal = "Scripta Materialia",

issn = "1359-6462",

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AU - Shute, C. J.

AU - Myers, B. D.

AU - Liao, Y.

AU - Li, S. Y.

AU - Hodge, A. M.

AU - Barbee, T. w.

AU - Zhu, Y. T.

AU - Weertman, J. R.

N1 - Funding Information: The authors thank W.W. Jian for carrying out the HPT deformation. This work made use of shared facilities supported by the MRSEC Program of the National Science Foundation ( DMR-020513 ) at the Materials Research Center of Northwestern University.

PY - 2011/11

Y1 - 2011/11

N2 - Copper disks containing columns of aligned nanotwins were subjected to high-pressure torsion (HPT) involving a half turn under a 3 GPa compressive stress. The overall shear strain of 21 at 1 mm from the center of rotation is concentrated at the surfaces, where the columns of twins have been transformed into a 3-D grain structure to a depth of about 5 μm. The remaining columns of twins were sheared in the direction of the shear stress with little rotation of the twin boundaries.

AB - Copper disks containing columns of aligned nanotwins were subjected to high-pressure torsion (HPT) involving a half turn under a 3 GPa compressive stress. The overall shear strain of 21 at 1 mm from the center of rotation is concentrated at the surfaces, where the columns of twins have been transformed into a 3-D grain structure to a depth of about 5 μm. The remaining columns of twins were sheared in the direction of the shear stress with little rotation of the twin boundaries.

KW - Copper

KW - Deformation structures

KW - High-pressure torsion

KW - Nanotwins

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JO - Scripta Materialia

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High-pressure torsion of copper samples containing columns of highly aligned nanotwins

Abstract

Funding

Keywords

ASJC Scopus subject areas

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