Development of localized orientation gradients in fcc polycrystals

A. J. Beaudoin; H. Mecking; U. F. Kocks

doi:10.1080/01418619608242998

Development of localized orientation gradients in fcc polycrystals

A. J. Beaudoin, H. Mecking, U. F. Kocks

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

Abstract

A finite-element formulation which derives constitutive response from crystal plasticity theory is used to examine localized deformation in fee polycrystals. Thepolycrystals are (simple) idealized three-dimensional arrangements of grains, andmany elements per grain. Non-uniform deformations within individual grains leadto the development of domains that are separated by boundaries of high misorien-tation. Also, localized shearing is seen to occur on a microscopic scale of graindimensions. The important consequence of these simulations is that the predictedlocal inhomogeneities are meeting various requirements that make them possiblenucléation sites for recrystallization.

Original language	English (US)
Pages (from-to)	1503-1517
Number of pages	15
Journal	Philosophical Magazine A: Physics of Condensed Matter, Structure, Defects and Mechanical Properties
Volume	73
Issue number	6
DOIs	https://doi.org/10.1080/01418619608242998
State	Published - Jun 1996
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
General Materials Science
Condensed Matter Physics
Physics and Astronomy (miscellaneous)
Metals and Alloys

Online availability

10.1080/01418619608242998

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title = "Development of localized orientation gradients in fcc polycrystals",

abstract = "A finite-element formulation which derives constitutive response from crystal plasticity theory is used to examine localized deformation in fee polycrystals. Thepolycrystals are (simple) idealized three-dimensional arrangements of grains, andmany elements per grain. Non-uniform deformations within individual grains leadto the development of domains that are separated by boundaries of high misorien-tation. Also, localized shearing is seen to occur on a microscopic scale of graindimensions. The important consequence of these simulations is that the predictedlocal inhomogeneities are meeting various requirements that make them possiblenucl{\'e}ation sites for recrystallization.",

author = "Beaudoin, {A. J.} and H. Mecking and Kocks, {U. F.}",

note = "Funding Information: This project was conducted with sponsorship of the Center for Materials Science, Los Alamos National Laboratory. These efforts were also assisted through support by Deutsche Forschungs Gemeinschaft (SFB37 1). Support for A. J. Beaudoin was provided by Reynolds Metals Company. Dr Stuart Wright provided software subroutines for the analysis of misorientation. 'I'he simulation software was developed under the direction of Professor P. R. Dawson with support from Office of Naval Research Contract No. N00014-90-J-1810. Computing resources were provided through the Advanced Computing L,aboratory at Los Alamos National Laboratory, sponsored by the US Department of Energy. Conversations with Professor T. Kamijo, Professor A. Needleman and Professor A. D. Rollett concerning the simulation results were much appreciated.",

year = "1996",

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doi = "10.1080/01418619608242998",

language = "English (US)",

volume = "73",

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TY - JOUR

T1 - Development of localized orientation gradients in fcc polycrystals

AU - Beaudoin, A. J.

AU - Mecking, H.

AU - Kocks, U. F.

N1 - Funding Information: This project was conducted with sponsorship of the Center for Materials Science, Los Alamos National Laboratory. These efforts were also assisted through support by Deutsche Forschungs Gemeinschaft (SFB37 1). Support for A. J. Beaudoin was provided by Reynolds Metals Company. Dr Stuart Wright provided software subroutines for the analysis of misorientation. 'I'he simulation software was developed under the direction of Professor P. R. Dawson with support from Office of Naval Research Contract No. N00014-90-J-1810. Computing resources were provided through the Advanced Computing L,aboratory at Los Alamos National Laboratory, sponsored by the US Department of Energy. Conversations with Professor T. Kamijo, Professor A. Needleman and Professor A. D. Rollett concerning the simulation results were much appreciated.

PY - 1996/6

Y1 - 1996/6

N2 - A finite-element formulation which derives constitutive response from crystal plasticity theory is used to examine localized deformation in fee polycrystals. Thepolycrystals are (simple) idealized three-dimensional arrangements of grains, andmany elements per grain. Non-uniform deformations within individual grains leadto the development of domains that are separated by boundaries of high misorien-tation. Also, localized shearing is seen to occur on a microscopic scale of graindimensions. The important consequence of these simulations is that the predictedlocal inhomogeneities are meeting various requirements that make them possiblenucléation sites for recrystallization.

AB - A finite-element formulation which derives constitutive response from crystal plasticity theory is used to examine localized deformation in fee polycrystals. Thepolycrystals are (simple) idealized three-dimensional arrangements of grains, andmany elements per grain. Non-uniform deformations within individual grains leadto the development of domains that are separated by boundaries of high misorien-tation. Also, localized shearing is seen to occur on a microscopic scale of graindimensions. The important consequence of these simulations is that the predictedlocal inhomogeneities are meeting various requirements that make them possiblenucléation sites for recrystallization.

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Development of localized orientation gradients in fcc polycrystals

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