Influence of stacking fault energy on deformation mechanism and dislocation storage capacity in ultrafine-grained materials

Z. W. Wang, Y. B. Wang, X. Z. Liao, Y. H. Zhao, E. J. Lavernia, Y. T. Zhu, Zenji Horita, T. G. Langdon

Research output: Contribution to journalArticle

112 Citations (Scopus)

Abstract

Partial dislocation emission from grain boundaries in metals with medium-to-high stacking fault energies is observed primarily in the grain size range of a few tens of nanometers. Here we report that a reduction in the stacking fault energy permits the emission of partial dislocations from grain boundaries in ultrafine-grained materials with grain sizes significantly larger than 100 nm and this produces twinning. Such twins are effective in increasing the dislocation storage capacity, which may be used to improve the ductility.

Original languageEnglish
Pages (from-to)52-55
Number of pages4
JournalScripta Materialia
Volume60
Issue number1
DOIs
Publication statusPublished - Jan 1 2009

Fingerprint

stacking fault energy
Stacking faults
Dislocations (crystals)
Grain boundaries
Twinning
grain boundaries
grain size
Ductility
Metals
twinning
ductility
metals
Ultrafine

All Science Journal Classification (ASJC) codes

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

Cite this

Wang, Z. W., Wang, Y. B., Liao, X. Z., Zhao, Y. H., Lavernia, E. J., Zhu, Y. T., ... Langdon, T. G. (2009). Influence of stacking fault energy on deformation mechanism and dislocation storage capacity in ultrafine-grained materials. Scripta Materialia, 60(1), 52-55. https://doi.org/10.1016/j.scriptamat.2008.08.032

Influence of stacking fault energy on deformation mechanism and dislocation storage capacity in ultrafine-grained materials. / Wang, Z. W.; Wang, Y. B.; Liao, X. Z.; Zhao, Y. H.; Lavernia, E. J.; Zhu, Y. T.; Horita, Zenji; Langdon, T. G.

In: Scripta Materialia, Vol. 60, No. 1, 01.01.2009, p. 52-55.

Research output: Contribution to journalArticle

Wang, ZW, Wang, YB, Liao, XZ, Zhao, YH, Lavernia, EJ, Zhu, YT, Horita, Z & Langdon, TG 2009, 'Influence of stacking fault energy on deformation mechanism and dislocation storage capacity in ultrafine-grained materials', Scripta Materialia, vol. 60, no. 1, pp. 52-55. https://doi.org/10.1016/j.scriptamat.2008.08.032
Wang, Z. W. ; Wang, Y. B. ; Liao, X. Z. ; Zhao, Y. H. ; Lavernia, E. J. ; Zhu, Y. T. ; Horita, Zenji ; Langdon, T. G. / Influence of stacking fault energy on deformation mechanism and dislocation storage capacity in ultrafine-grained materials. In: Scripta Materialia. 2009 ; Vol. 60, No. 1. pp. 52-55.
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