Uniaxial tensile and compressive tests were performed at room temperature on extruded AZ31 Mg
alloy specimens and distinct tensile-compressive anisotropy was detected. Deformed specimens were examined and
the results indicate that the generation of {10ˉ12}twin is responsible for the mechanical anisotropy. A rate
independent crystal plasticity model, which accounts for both slip and twinning, was developed for polycrystalline
hexagonal close packed (HCP) materials. Model predictions for the stress-strain curves and texture evolution
were in reasonable agreement with the experimental results. Specifically, the model captured the three stages
of strain hardening for uniaxial-compression. By comparing stress-strain curves and texture evolution between
model predictions and experimental measures, information about the dominant slip and twinning systems active
at room temperature was deduced.
TANG Wei-qin (唐伟琴), HUANG Shi-yao (黄诗尧), ZHANG Shao-rui (张少睿), LI Da-yong (李大永), PENG Ying-hong* (彭颖红)
. Polycrystalline Behavior Analysis of Extruded Magnesium Alloy AZ31[J]. Journal of Shanghai Jiaotong University(Science), 2013
, 18(2)
: 186
-189
.
DOI: 10.1007/s12204-012-1295-8
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