Microstructure and grain-boundary spectrum of ultrafine-grained nickel produced by severe plastic deformation

A. P. Zhilyaev; M. D. Baro; Z. Horita; J. A. Szpunar; T. G. Langdon

Microstructure and grain-boundary spectrum of ultrafine-grained nickel produced by severe plastic deformation

A. P. Zhilyaev, M. D. Baro, Z. Horita, J. A. Szpunar, T. G. Langdon

Department of Physics

Research output: Contribution to journal › Article › Research › peer-review

10 Citations (Scopus)

Abstract

The effect of severe plastic deformation on the evolution of the microstructure and the grain-boundary ensemble in ultrafine-grained (UFG) nickel is studied. Torsion under quasi-hydrostatic pressure can produce a uniform UFG structure such that both the microstructure and grain-boundary ensemble are statistically uniform over the whole volume of a sample. The experimental results on relaxation processes in the UFG nickel produced by both severe plastic deformation and electrodeposition are presented. The grain-growth kinetics in the UFG nickel produced by equal-channel angular pressing is studied. The grain-growth activation energy is found to coincide with the activation energy of grain-boundary self-diffusion. The experimental results on the evolution of the grain-boundary spectrum upon annealing of the UFG nickel produced by torsion are described. The activation energy and stored enthalpy for the UFG nickel are measured by differential scanning photometry. Copyright © 2004 by MAIK "Nauka/Interperiodica".

Original language	English
Pages (from-to)	60-74
Journal	Russian Metallurgy (Metally)
Volume	2004
Issue number	1
Publication status	Published - 1 Jan 2004

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@article{eead8108a8164f83a55d61d5c45b70c8,

title = "Microstructure and grain-boundary spectrum of ultrafine-grained nickel produced by severe plastic deformation",

abstract = "The effect of severe plastic deformation on the evolution of the microstructure and the grain-boundary ensemble in ultrafine-grained (UFG) nickel is studied. Torsion under quasi-hydrostatic pressure can produce a uniform UFG structure such that both the microstructure and grain-boundary ensemble are statistically uniform over the whole volume of a sample. The experimental results on relaxation processes in the UFG nickel produced by both severe plastic deformation and electrodeposition are presented. The grain-growth kinetics in the UFG nickel produced by equal-channel angular pressing is studied. The grain-growth activation energy is found to coincide with the activation energy of grain-boundary self-diffusion. The experimental results on the evolution of the grain-boundary spectrum upon annealing of the UFG nickel produced by torsion are described. The activation energy and stored enthalpy for the UFG nickel are measured by differential scanning photometry. Copyright {\textcopyright} 2004 by MAIK {"}Nauka/Interperiodica{"}.",

author = "Zhilyaev, {A. P.} and Baro, {M. D.} and Z. Horita and Szpunar, {J. A.} and Langdon, {T. G.}",

year = "2004",

month = jan,

day = "1",

language = "English",

volume = "2004",

pages = "60--74",

journal = "Russian Metallurgy (Metally)",

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TY - JOUR

T1 - Microstructure and grain-boundary spectrum of ultrafine-grained nickel produced by severe plastic deformation

AU - Zhilyaev, A. P.

AU - Baro, M. D.

AU - Horita, Z.

AU - Szpunar, J. A.

AU - Langdon, T. G.

PY - 2004/1/1

Y1 - 2004/1/1

N2 - The effect of severe plastic deformation on the evolution of the microstructure and the grain-boundary ensemble in ultrafine-grained (UFG) nickel is studied. Torsion under quasi-hydrostatic pressure can produce a uniform UFG structure such that both the microstructure and grain-boundary ensemble are statistically uniform over the whole volume of a sample. The experimental results on relaxation processes in the UFG nickel produced by both severe plastic deformation and electrodeposition are presented. The grain-growth kinetics in the UFG nickel produced by equal-channel angular pressing is studied. The grain-growth activation energy is found to coincide with the activation energy of grain-boundary self-diffusion. The experimental results on the evolution of the grain-boundary spectrum upon annealing of the UFG nickel produced by torsion are described. The activation energy and stored enthalpy for the UFG nickel are measured by differential scanning photometry. Copyright © 2004 by MAIK "Nauka/Interperiodica".

AB - The effect of severe plastic deformation on the evolution of the microstructure and the grain-boundary ensemble in ultrafine-grained (UFG) nickel is studied. Torsion under quasi-hydrostatic pressure can produce a uniform UFG structure such that both the microstructure and grain-boundary ensemble are statistically uniform over the whole volume of a sample. The experimental results on relaxation processes in the UFG nickel produced by both severe plastic deformation and electrodeposition are presented. The grain-growth kinetics in the UFG nickel produced by equal-channel angular pressing is studied. The grain-growth activation energy is found to coincide with the activation energy of grain-boundary self-diffusion. The experimental results on the evolution of the grain-boundary spectrum upon annealing of the UFG nickel produced by torsion are described. The activation energy and stored enthalpy for the UFG nickel are measured by differential scanning photometry. Copyright © 2004 by MAIK "Nauka/Interperiodica".

M3 - Article

VL - 2004

SP - 60

EP - 74

JO - Russian Metallurgy (Metally)

JF - Russian Metallurgy (Metally)

SN - 0036-0295

IS - 1

ER -