Microstructural characterization of nickel subjected to dynamic plastic deformation

Z.P. Luo; Oleg Mishin; Yubin Zhang; H.W. Zhang; K. Lu

doi:10.1016/j.scriptamat.2011.11.022

Microstructural characterization of nickel subjected to dynamic plastic deformation

Z.P. Luo, Oleg Mishin, Yubin Zhang, H.W. Zhang, K. Lu

Shenyang National Laboratory for Materials Science

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Abstract

Average microstructural parameters and the extent of microstructural heterogeneity in nickel deformed at a high strain rate have been characterized quantitatively and compared to those after compression at a quasi-static strain rate. The microstructure in the high strain rate sample was found to be more refined and less heterogeneous than that in the sample compressed at a low strain rate. The greater refinement in the former sample was achieved due to subdivision by a high frequency of finely spaced low-angle boundaries.

Original language	English
Journal	Scripta Materialia
Volume	66
Issue number	6
Pages (from-to)	335-338
ISSN	1359-6462
DOIs	https://doi.org/10.1016/j.scriptamat.2011.11.022
Publication status	Published - 2012

Keywords

Dynamic plastic deformation
Dislocation boundaries
Nickel
Misorientation
Deformation structure

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AU - Luo, Z.P.

AU - Mishin, Oleg

AU - Zhang, Yubin

AU - Zhang, H.W.

AU - Lu, K.

PY - 2012

Y1 - 2012

N2 - Average microstructural parameters and the extent of microstructural heterogeneity in nickel deformed at a high strain rate have been characterized quantitatively and compared to those after compression at a quasi-static strain rate. The microstructure in the high strain rate sample was found to be more refined and less heterogeneous than that in the sample compressed at a low strain rate. The greater refinement in the former sample was achieved due to subdivision by a high frequency of finely spaced low-angle boundaries.

AB - Average microstructural parameters and the extent of microstructural heterogeneity in nickel deformed at a high strain rate have been characterized quantitatively and compared to those after compression at a quasi-static strain rate. The microstructure in the high strain rate sample was found to be more refined and less heterogeneous than that in the sample compressed at a low strain rate. The greater refinement in the former sample was achieved due to subdivision by a high frequency of finely spaced low-angle boundaries.

KW - Dynamic plastic deformation

KW - Dislocation boundaries

KW - Nickel

KW - Misorientation

KW - Deformation structure

U2 - 10.1016/j.scriptamat.2011.11.022

DO - 10.1016/j.scriptamat.2011.11.022

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VL - 66

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JO - Scripta Materialia

JF - Scripta Materialia

IS - 6

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Microstructural characterization of nickel subjected to dynamic plastic deformation

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Keywords

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