Microstructure and yield strength of severely deformed silver

J. Gubicza, N. Chinh, J. Lábár, Zoltán Hegedus, Cheng Xu, Terence G. Langdon

Research output: Contribution to journalArticle

39 Citations (Scopus)

Abstract

High-purity silver was processed by equal-channel angular pressing (ECAP) to eight passes, giving an average grain size of ∼250 nm. The densities of dislocations and twins were measured and compared with reported values for other face-centered cubic metals processed by ECAP. The results show the saturation yield strength correlates to the dislocation density according to the Taylor equation, and that the value of the geometrical parameter α in the Taylor equation is strongly influenced by the stacking fault energy.

Original languageEnglish
Pages (from-to)775-778
Number of pages4
JournalScripta Materialia
Volume58
Issue number9
DOIs
Publication statusPublished - May 2008

Fingerprint

Equal channel angular pressing
pressing
yield strength
Silver
Yield stress
silver
stacking fault energy
microstructure
Microstructure
Stacking faults
purity
grain size
Metals
saturation
metals

Keywords

  • Equal-channel angular pressing
  • Severe plastic deformation
  • Silver
  • Stacking fault energy
  • Taylor equation

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Materials Science(all)
  • Metals and Alloys

Cite this

Microstructure and yield strength of severely deformed silver. / Gubicza, J.; Chinh, N.; Lábár, J.; Hegedus, Zoltán; Xu, Cheng; Langdon, Terence G.

In: Scripta Materialia, Vol. 58, No. 9, 05.2008, p. 775-778.

Research output: Contribution to journalArticle

Gubicza, J. ; Chinh, N. ; Lábár, J. ; Hegedus, Zoltán ; Xu, Cheng ; Langdon, Terence G. / Microstructure and yield strength of severely deformed silver. In: Scripta Materialia. 2008 ; Vol. 58, No. 9. pp. 775-778.
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