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Simulation of Dynamic Discontinuous Recrystallization During Hot Deformation of Pure Copper

Hallberg, Håkan LU ; Wallin, Mathias LU and Ristinmaa, Matti LU (2010) The First International Conference on Advances in Interaction and Multiscale Mechanics (AIMM'10)
Abstract
A probabilistic cellular automaton technique is employed in the simulation of dynamic discontinuous recrystallization (DDRX) in pure copper under hot deformation conditions. Important features of the present model are calibration of grain growth kinetics against the analytical solution and also the description of a misorientation-dependent grain boundary energy, valid in the entire range of misorientation angles. The model is shown to capture both the spatial and temporal microstructural evolution in terms of grain size and grain shape changes and also the macroscopic flow stress behavior of the material. In accordance with experimental findings, the material exhibits serrated flow stress at higher temperatures due to cycles of... (More)
A probabilistic cellular automaton technique is employed in the simulation of dynamic discontinuous recrystallization (DDRX) in pure copper under hot deformation conditions. Important features of the present model are calibration of grain growth kinetics against the analytical solution and also the description of a misorientation-dependent grain boundary energy, valid in the entire range of misorientation angles. The model is shown to capture both the spatial and temporal microstructural evolution in terms of grain size and grain shape changes and also the macroscopic flow stress behavior of the material. In accordance with experimental findings, the material exhibits serrated flow stress at higher temperatures due to cycles of recrystallization. (Less)
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published
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pages
8 pages
conference name
The First International Conference on Advances in Interaction and Multiscale Mechanics (AIMM'10)
language
English
LU publication?
yes
id
870ff469-3935-44cc-9853-2b18c0615e5a (old id 1614305)
date added to LUP
2010-06-10 13:57:13
date last changed
2016-04-16 10:35:19
@misc{870ff469-3935-44cc-9853-2b18c0615e5a,
  abstract     = {A probabilistic cellular automaton technique is employed in the simulation of dynamic discontinuous recrystallization (DDRX) in pure copper under hot deformation conditions. Important features of the present model are calibration of grain growth kinetics against the analytical solution and also the description of a misorientation-dependent grain boundary energy, valid in the entire range of misorientation angles. The model is shown to capture both the spatial and temporal microstructural evolution in terms of grain size and grain shape changes and also the macroscopic flow stress behavior of the material. In accordance with experimental findings, the material exhibits serrated flow stress at higher temperatures due to cycles of recrystallization.},
  author       = {Hallberg, Håkan and Wallin, Mathias and Ristinmaa, Matti},
  language     = {eng},
  pages        = {8},
  title        = {Simulation of Dynamic Discontinuous Recrystallization During Hot Deformation of Pure Copper},
  year         = {2010},
}