Grain-boundary diffusion of nickel in submicrocrystalline molybdenum processed by severe plastic deformation

G. P. Grabovetskaya, I. P. Mishin, I. V. Ratochka, S. G. Psakhie, Yu R. Kolobov

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

The depth-concentration profiles of nickel upon diffusion in submicrocrystalline (SMC) molybdenum processed by severe plastic deformation (SPD) have been studied by Auger electron spectroscopy. The coefficients (D b) and activation energies of the grain-boundary diffusion of nickel in SMC molybdenum were determined in a 973-1123 K temperature interval. The results indicate that a difference between the D b values in SMC and coarse-grained molybdenum is related to a nonequilibrium state of grain boundaries in the SPD-processed metal.

Original languageEnglish
Pages (from-to)136-138
Number of pages3
JournalTechnical Physics Letters
Volume34
Issue number2
DOIs
Publication statusPublished - 1 Feb 2008

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plastic deformation
molybdenum
grain boundaries
nickel
Auger spectroscopy
electron spectroscopy
activation energy
intervals
coefficients
profiles
metals
temperature

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Grain-boundary diffusion of nickel in submicrocrystalline molybdenum processed by severe plastic deformation. / Grabovetskaya, G. P.; Mishin, I. P.; Ratochka, I. V.; Psakhie, S. G.; Kolobov, Yu R.

In: Technical Physics Letters, Vol. 34, No. 2, 01.02.2008, p. 136-138.

Research output: Contribution to journalArticle

Grabovetskaya, G. P. ; Mishin, I. P. ; Ratochka, I. V. ; Psakhie, S. G. ; Kolobov, Yu R. / Grain-boundary diffusion of nickel in submicrocrystalline molybdenum processed by severe plastic deformation. In: Technical Physics Letters. 2008 ; Vol. 34, No. 2. pp. 136-138.
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