Paper Title:
Coupled Computer Simulations of Recrystallization in Deformed Polycrystals
  Abstract

Because both nucleation and growth are local phenomena, recrystallization depends on the spatial distribution of strains in a plastically deformed polycrystal. Using a polycrystal plasticity finite element model, we calculated these distributions for equiaxed polycrystals of copper with a random texture. We incorporated the results into a mesoscale recrystallization simulation with a nucleation model based on subgrain evolution. The coupled simulation results indicate that differences in local structure cause significant differences in recrystallization kinetics and grain size distribution. Furthermore, recrystallization in non-uniformly deformed polycrystals, even those with a random texture, is quantitatively and qualitatively different than predicted by continuum models that assume a uniform distribution of strains. This work highlights the need to examine all length scales relevant to the recrystallization process.

  Info
Periodical
Materials Science Forum (Volumes 467-470)
Edited by
B. Bacroix, J.H. Driver, R. Le Gall, Cl. Maurice, R. Penelle, H. Réglé and L. Tabourot
Pages
641-646
DOI
10.4028/www.scientific.net/MSF.467-470.641
Citation
E. A. Holm, K. J. Healey, C. C. Battaile, "Coupled Computer Simulations of Recrystallization in Deformed Polycrystals ", Materials Science Forum, Vols. 467-470, pp. 641-646, 2004
Online since
October 2004
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Price
$32.00
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