An examination of microtexture and microstructure in ultrafine-grained nickel

A. P. Zhilyaev; M. D. Baró; T. G. Langdon; T. R. McNelley

An examination of microtexture and microstructure in ultrafine-grained nickel

A. P. Zhilyaev, M. D. Baró, T. G. Langdon, T. R. McNelley

Department of Physics

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

19 Citations (Scopus)

Abstract

A detailed orientation imaging microscopy (OIM) investigation was conducted to evaluate the microstructural characteristics in samples of pure nickel processed using three different procedures of severe plastic deformation (SPD): equal-channel angular pressing (ECAP), high-pressure torsion (HPT) and a combination of ECAP and HPT. Electron backscattering diffraction (EBSD) techniques were employed to measure the microtextures and the distributions of the misorientation angles. A thorough analysis of the microtexture revealed the shear plane normal and shear direction for UFG nickel obtained by various kinds of severe plastic deformation. It is shown that a combination of ECAP and HPT leads both to a greater refinement in the microstructure and to a smaller fraction of boundaries having low angles of misorientation. © 2004 Advanced Study Center Co. Ltd.

Original language	English
Pages (from-to)	41-49
Journal	Reviews on Advanced Materials Science
Volume	7
Issue number	1
Publication status	Published - 1 Jul 2004

Cite this

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title = "An examination of microtexture and microstructure in ultrafine-grained nickel",

abstract = "A detailed orientation imaging microscopy (OIM) investigation was conducted to evaluate the microstructural characteristics in samples of pure nickel processed using three different procedures of severe plastic deformation (SPD): equal-channel angular pressing (ECAP), high-pressure torsion (HPT) and a combination of ECAP and HPT. Electron backscattering diffraction (EBSD) techniques were employed to measure the microtextures and the distributions of the misorientation angles. A thorough analysis of the microtexture revealed the shear plane normal and shear direction for UFG nickel obtained by various kinds of severe plastic deformation. It is shown that a combination of ECAP and HPT leads both to a greater refinement in the microstructure and to a smaller fraction of boundaries having low angles of misorientation. {\textcopyright} 2004 Advanced Study Center Co. Ltd.",

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T1 - An examination of microtexture and microstructure in ultrafine-grained nickel

AU - Zhilyaev, A. P.

AU - Baró, M. D.

AU - Langdon, T. G.

AU - McNelley, T. R.

PY - 2004/7/1

Y1 - 2004/7/1

N2 - A detailed orientation imaging microscopy (OIM) investigation was conducted to evaluate the microstructural characteristics in samples of pure nickel processed using three different procedures of severe plastic deformation (SPD): equal-channel angular pressing (ECAP), high-pressure torsion (HPT) and a combination of ECAP and HPT. Electron backscattering diffraction (EBSD) techniques were employed to measure the microtextures and the distributions of the misorientation angles. A thorough analysis of the microtexture revealed the shear plane normal and shear direction for UFG nickel obtained by various kinds of severe plastic deformation. It is shown that a combination of ECAP and HPT leads both to a greater refinement in the microstructure and to a smaller fraction of boundaries having low angles of misorientation. © 2004 Advanced Study Center Co. Ltd.

AB - A detailed orientation imaging microscopy (OIM) investigation was conducted to evaluate the microstructural characteristics in samples of pure nickel processed using three different procedures of severe plastic deformation (SPD): equal-channel angular pressing (ECAP), high-pressure torsion (HPT) and a combination of ECAP and HPT. Electron backscattering diffraction (EBSD) techniques were employed to measure the microtextures and the distributions of the misorientation angles. A thorough analysis of the microtexture revealed the shear plane normal and shear direction for UFG nickel obtained by various kinds of severe plastic deformation. It is shown that a combination of ECAP and HPT leads both to a greater refinement in the microstructure and to a smaller fraction of boundaries having low angles of misorientation. © 2004 Advanced Study Center Co. Ltd.

M3 - Article

SN - 1605-8127

VL - 7

SP - 41

EP - 49

JO - Reviews on Advanced Materials Science

JF - Reviews on Advanced Materials Science

IS - 1

ER -

An examination of microtexture and microstructure in ultrafine-grained nickel

Abstract

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