Open AccessNumerical simulation of the Portevin-Le Chatelier effect in annealed aluminum alloys
Author(s) -
Huifeng Jiang,
Qingchuan Zhang,
Zhongjia Chen,
WU Xiao-ping
Publication year - 2006
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.55.2856
Subject(s) - portevin–le chatelier effect , materials science , aluminium , thermodynamics , metallurgy , physics , dynamic strain aging , alloy
By taking into account of the precipitate kinetics and the dynamic strain aging mechanism, a phenomenological model with clear physical origin is established in this paper. Three types of serrated flow in the Portevin-Le Chatelier effect is reproduced by the numerical simulations of the uniaxial tensile tests with different applied strain rates. The computational results are found in good agreement with the experimental curves, which testifies the validity of the present model.