De-twinning via secondary twinning in face-centered cubic alloys

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Y. Cao
  • Y. B. Wang
  • Z. B. Chen
  • X. Z. Liao
  • M. Kawasaki
  • S. P. Ringer
  • T. G. Langdon

Detail(s)

Original languageEnglish
Pages (from-to)110-114
Journal / PublicationMaterials Science and Engineering A
Volume578
Online published27 Apr 2013
Publication statusPublished - 20 Aug 2013
Externally publishedYes

Abstract

We report a de-twinning process via secondary twinning in face-centred cubic structures with low stacking fault energies. A duplex stainless steel was deformed using high-pressure torsion. Primary twins with an average twin boundary (TB) spacing of ~7. nm formed in the early stages of the deformation and this was followed by secondary twinning. The partial dislocations from the secondary twinning subsequently interacted with the primary TBs, leading to the de-twinning of the primary twins. As a result of the de-twinning process, the secondary twins with an average TB spacing of ~1.7. nm reached a maximum length of ~200. nm. © 2013 Elsevier B.V.

Research Area(s)

  • De-twinning, Severe plastic deformation, Steel, Transmission electron microscopy, Twinning

Citation Format(s)

De-twinning via secondary twinning in face-centered cubic alloys. / Cao, Y.; Wang, Y. B.; Chen, Z. B. et al.
In: Materials Science and Engineering A, Vol. 578, 20.08.2013, p. 110-114.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review