Microstructure of ultrafine-grained fcc metals produced by severe plastic deformation

J. Gubicza, N. Chinh, Gy Krállics, I. Schiller, T. Ungár

Research output: Contribution to journalArticle

98 Citations (Scopus)

Abstract

The microstructure of ultrafine-grained fcc metals (Al, Al-Mg alloys, Cu and Ni) produced by applying severe plastic deformation (SPD) techniques is studied by X-ray diffraction line profile analysis. It is found that Mg addition promotes efficiently the reduction of the crystallite size and the increase of the dislocation density in Al during SPD process. In Al-Mg alloys the crystallite size reaches its minimum value at lower strain than the dislocation density saturates. The results also show that the yield strength correlates well with that calculated from the dislocation density using the Taylor equation.

Original languageEnglish
Pages (from-to)194-199
Number of pages6
JournalCurrent Applied Physics
Volume6
Issue number2
DOIs
Publication statusPublished - Feb 2006

Fingerprint

Crystallite size
plastic deformation
Plastic deformation
Metals
microstructure
Microstructure
metals
Yield stress
yield strength
X ray diffraction
profiles
diffraction
Ultrafine
x rays

Keywords

  • Dislocation density
  • Severe plastic deformation
  • Ultrafine-grained fcc metals
  • X-ray diffraction line profile analysis

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Materials Science (miscellaneous)

Cite this

Microstructure of ultrafine-grained fcc metals produced by severe plastic deformation. / Gubicza, J.; Chinh, N.; Krállics, Gy; Schiller, I.; Ungár, T.

In: Current Applied Physics, Vol. 6, No. 2, 02.2006, p. 194-199.

Research output: Contribution to journalArticle

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