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Physical and Numerical Simulation of Cold Rolling of an AlFeSi Alloy in Consideration of Static Recovery
Author(s) -
Heering Christoph,
Li Xiaoli,
Bambach Markus,
Hirt Gerhard
Publication year - 2010
Publication title -
advanced engineering materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 114
eISSN - 1527-2648
pISSN - 1438-1656
DOI - 10.1002/adem.201000024
Subject(s) - materials science , softening , yield (engineering) , alloy , work (physics) , mechanics , stress (linguistics) , flow stress , flow (mathematics) , process (computing) , metallurgy , composite material , mechanical engineering , computer science , engineering , physics , linguistics , philosophy , operating system
The influence of static recovery on the yield stress of AA8079 was investigated in lab‐scale cold rolling experiments. The yield stress of AA8079 in the cold rolling process is affected by static recovery, but the softening caused by static recovery is completely compensated in the subsequent cold rolling pass. Thus, the effect of static recovery on the yield stress of the final product is of minor importance. For the TPM, the kinetics of static recovery of the AlFeSi alloy AA8079 were determined for different temperatures and strain rates. The measured softening kinetics were then implemented in the physically based flow stress model 3IVM+. This flow stress model was extended with an empirical approach for static recovery to enable the through‐process modeling of cold‐rolled aluminum in consideration of static recovery. Future work will focus on physically based modeling of static recovery without using empirical approaches.