Applied stress controls the production of nano-twins in coarse-grained metals

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

23 Scopus Citations
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Author(s)

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

Detail(s)

Original languageEnglish
Article number231903
Journal / PublicationApplied Physics Letters
Volume101
Issue number23
Online published4 Dec 2012
Publication statusPublished - Dec 2012
Externally publishedYes

Abstract

We present evidence that the level of the applied stress plays a critical role in deformation twinning in face-centred cubic alloys. While conventional cold rolling of a face-centred cubic structure produces a microstructure with a high-density of extended dislocations, increasing the applied stress using high-pressure torsion gives a nano-twinned coarse-grained structure. This suggests the existence of a critical stress for deformation twinning which thereby delineates an approach for the production of nano-twinned microstructures in coarse-grained materials with superior mechanical properties. © 2012 American Institute of Physics.

Citation Format(s)

Applied stress controls the production of nano-twins in coarse-grained metals. / Cao, Y.; Wang, Y. B.; Liao, X. Z.; Kawasaki, M.; Ringer, S. P.; Langdon, T. G.; Zhu, Y. T.

In: Applied Physics Letters, Vol. 101, No. 23, 231903, 12.2012.

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