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

Research output: Contribution to journalArticle

7 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 languageEnglish (US)
Pages (from-to)899-902
Number of pages4
JournalScripta Materialia
Volume65
Issue number10
DOIs
StatePublished - Nov 1 2011

Keywords

  • Copper
  • Deformation structures
  • High-pressure torsion
  • Nanotwins

ASJC Scopus subject areas

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

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    Shute, C. J., Myers, B. D., Liao, Y., Li, S. Y., Hodge, A. M., Barbee, T. W., Zhu, Y. T., & Weertman, J. R. (2011). High-pressure torsion of copper samples containing columns of highly aligned nanotwins. Scripta Materialia, 65(10), 899-902. https://doi.org/10.1016/j.scriptamat.2011.08.004