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

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 language	English
Pages (from-to)	136-138
Number of pages	3
Journal	Technical Physics Letters
Volume	34
Issue number	2
DOIs	https://doi.org/10.1007/s11455-008-2015-5
Publication status	Published - 1 Feb 2008

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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@article{0f782f5dcbc947bfb8e4146e3658da17,

title = "Grain-boundary diffusion of nickel in submicrocrystalline molybdenum processed by severe plastic deformation",

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.",

author = "Grabovetskaya, {G. P.} and Mishin, {I. P.} and Ratochka, {I. V.} and Psakhie, {S. G.} and Kolobov, {Yu R.}",

year = "2008",

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doi = "10.1007/s11455-008-2015-5",

language = "English",

volume = "34",

pages = "136--138",

journal = "Technical Physics Letters",

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publisher = "Maik Nauka-Interperiodica Publishing",

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T1 - Grain-boundary diffusion of nickel in submicrocrystalline molybdenum processed by severe plastic deformation

AU - Grabovetskaya, G. P.

AU - Mishin, I. P.

AU - Ratochka, I. V.

AU - Psakhie, S. G.

AU - Kolobov, Yu R.

PY - 2008/2/1

Y1 - 2008/2/1

N2 - 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.

AB - 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.

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U2 - 10.1007/s11455-008-2015-5

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EP - 138

JO - Technical Physics Letters

JF - Technical Physics Letters

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