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; Z. Horita; T. G. Langdon

doi:10.1016/j.scriptamat.2008.08.032

Author(s)

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

Detail(s)

Original language	English
Pages (from-to)	52-55
Journal / Publication	Scripta Materialia
Volume	60
Issue number	1
Online published	9 Sept 2008
Publication status	Published - Jan 2009
Externally published	Yes

Link(s)

DOI	DOI https://doi.org/10.1016/j.scriptamat.2008.08.032 Final Published version
	Check@CityULib
Link to Scopus	https://www.scopus.com/record/display.uri?eid=2-s2.0-53949106300&origin=recordpage
Permanent Link	https://scholars.cityu.edu.hk/en/publications/publication(9c0d6c66-8e78-442b-bddf-3e7708a6567e).html

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. © 2008 Acta Materialia Inc.

Research Area(s)

Deformation mechanism, Stacking fault energy, Ultrafine-grained materials

Citation Format(s)

[ RIS ] [ BibTeX ]

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. et al.
In: Scripta Materialia, Vol. 60, No. 1, 01.2009, p. 52-55.

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

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, Z., & 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

Wang ZW, Wang YB, Liao XZ, Zhao YH, Lavernia EJ, Zhu YT et al. Influence of stacking fault energy on deformation mechanism and dislocation storage capacity in ultrafine-grained materials. Scripta Materialia. 2009 Jan;60(1):52-55. Epub 2008 Sept 9. doi: 10.1016/j.scriptamat.2008.08.032

Wang, Z. W. ; Wang, Y. B. ; Liao, X. Z. et al. / 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.