Title: A disclination-based model for grain subdivision
Authors: Seefeldt, Marc ×
Delannay, Laurent
Peeters, Bart
Kalidindi, Surya R.
Van Houtte, Paul #
Issue Date: Dec-2001
Publisher: Elsevier Sequoia
Series Title: Materials Science and Engineering A, Structural Materials: Properties, Microstructure and Processing vol:319-321 pages:192-196
Abstract: Grain subdivision under cold rolling of fee polycrystals is modelled by formulating evolution equations for the statistically stored dislocation densities (cell structure), the propagating partial disclination dipole densities, and the immobile partial disclination densities (cell block structure) at the slip system level. The development of the mean cell and cell block sizes and of the mean misorientations across the cell block boundaries (ebb) is predicted for several grain orientations. Two types of grain subdivision were distinguished, cube, rolling direction (RD)- and transverse direction (TD)-rotated cube oriented grains showed a finer subdivision and nearly no spread of misorientation between the ebb families, while Goss, brass and S-oriented grains showed a coarser subdivision and a significant spread of the misorientations. Copper oriented grains exhibit an intermediate behaviour. The predictions of the model for the evolution of the cell and cell block sizes are in reasonable agreement with experimental results. (C) 2001 Elsevier Science B.V. All rights reserved.
ISSN: 0921-5093
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Mechanical Metallurgy Section (-)
Biochemistry Section (Medicine) (-)
× corresponding author
# (joint) last author

Files in This Item:
File Status SizeFormat
pub00042.pdf Published 135KbAdobe PDFView/Open Request a copy

These files are only available to some KU Leuven Association staff members


All items in Lirias are protected by copyright, with all rights reserved.

© Web of science