Microstructure of severely deformed metals determined by X-ray peak profile analysis

J. Gubicza, N. H. Nam, L. Balogh, R. J. Hellmig, V. V. Stolyarov, Y. Estrin, T. Ungár

Research output: Article

70 Citations (Scopus)

Abstract

Two essentially different metals, fcc copper and hexagonal titanium, were deformed by equal channel angular pressing (ECAP) up to eight passes. The microstructure developed as a result of severe plastic deformation (SPD) was studied by X-ray peak profile analysis. The formation of submicron grain sized structures was studied as a function of the number of ECAP passes. Thermal stability of the microstructure in both copper and titanium was examined by differential scanning calorimetry (DSC). During the isothermal heat-treatment of copper a bi-modal microstructure was formed, as manifested in a special shape of the peak profiles. In titanium, a considerable fraction of dislocations gets annihilated at temperatures well below the exothermic peak in the DSC curve.

Original languageEnglish
Pages (from-to)248-252
Number of pages5
JournalJournal of Alloys and Compounds
Volume378
Issue number1-2
DOIs
Publication statusPublished - szept. 22 2004

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Titanium
Copper
Equal channel angular pressing
Metals
X rays
Microstructure
Differential scanning calorimetry
Crystal microstructure
Plastic deformation
Thermodynamic stability
Heat treatment
Temperature

ASJC Scopus subject areas

  • Metals and Alloys

Cite this

Microstructure of severely deformed metals determined by X-ray peak profile analysis. / Gubicza, J.; Nam, N. H.; Balogh, L.; Hellmig, R. J.; Stolyarov, V. V.; Estrin, Y.; Ungár, T.

In: Journal of Alloys and Compounds, Vol. 378, No. 1-2, 22.09.2004, p. 248-252.

Research output: Article

Gubicza, J. ; Nam, N. H. ; Balogh, L. ; Hellmig, R. J. ; Stolyarov, V. V. ; Estrin, Y. ; Ungár, T. / Microstructure of severely deformed metals determined by X-ray peak profile analysis. In: Journal of Alloys and Compounds. 2004 ; Vol. 378, No. 1-2. pp. 248-252.
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AU - Estrin, Y.

AU - Ungár, T.

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