Microstructure and strength of metals processed by severe plastic deformation

J. Gubicza, N. Chinh, Terence G. Langdon, T. Ungár

Research output: Chapter in Book/Report/Conference proceedingConference contribution

7 Citations (Scopus)

Abstract

The microstructure of f.c.c. metals (Al, Cu, Ni) and alloys (Al-Mg) processed by severe plastic deformation (SPD) methods is studied by X-ray diffraction line profile analysis. It is shown that the crystallite size and the dislocation density saturate with increasing strain. Furthermore, the Mg addition promotes efficiently a reduction of the crystallite size and an increase of the dislocation density in Al during the SPD process. The yield strength correlates well with that calculated from the dislocation density using the Taylor equation, thereby indicating that the main strengthening mechanism in both pure metals and alloys is the interaction between dislocations.

Original languageEnglish
Title of host publicationTMS Annual Meeting
Pages231-236
Number of pages6
Volume2006
Publication statusPublished - 2006
Event2006 TMS Annual Meeting - San Antonio, TX, United States
Duration: Mar 12 2006Mar 16 2006

Other

Other2006 TMS Annual Meeting
CountryUnited States
CitySan Antonio, TX
Period3/12/063/16/06

Fingerprint

plastic deformation
Crystallite size
dislocation
Plastic deformation
microstructure
Metals
Microstructure
metal
Strengthening (metal)
Yield stress
X ray diffraction
X-ray diffraction

Keywords

  • Dislocation density
  • Face-centered cubic metals
  • Severe plastic deformation
  • Strength
  • X-ray diffraction line profile analysis

ASJC Scopus subject areas

  • Geology
  • Metals and Alloys

Cite this

Microstructure and strength of metals processed by severe plastic deformation. / Gubicza, J.; Chinh, N.; Langdon, Terence G.; Ungár, T.

TMS Annual Meeting. Vol. 2006 2006. p. 231-236.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Gubicza, J, Chinh, N, Langdon, TG & Ungár, T 2006, Microstructure and strength of metals processed by severe plastic deformation. in TMS Annual Meeting. vol. 2006, pp. 231-236, 2006 TMS Annual Meeting, San Antonio, TX, United States, 3/12/06.
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