Three-dimensional effects of twinning in magnesium alloys

K. Hazeli, J. Cuadra, F. Streller, C. M. Barr, M. L. Taheri, R. W. Carpick, A. Kontsos

Research output: Contribution to journalArticlepeer-review

25 Scopus citations


This article provides experimental evidence on the pronounced three-dimensional surface effects caused by tension twinning at early stages of plasticity of a magnesium alloy. To achieve this goal, multiscale mechanical testing was combined with strain field, texture and surface morphology quantification. The current investigation correlates crystallography-driven, grain-scale surface roughening to the spatially heterogeneous micro- and macrostrain. It was found that tension twinning causes considerable surface extrusions and intrusions across multiple grains that are directly related to severe strain inhomogeneities.

Original languageEnglish (US)
Pages (from-to)9-12
Number of pages4
JournalScripta Materialia
StatePublished - Apr 15 2015
Externally publishedYes


  • Digital image correlation (DIC)
  • Local plasticity
  • Strain localization
  • Surface step
  • Twinning

ASJC Scopus subject areas

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


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