Polycrystalline Behavior Analysis of Extruded Magnesium Alloy AZ31

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 {1012}（1011） twin is responsible for the mechanical...

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Published in:Shanghai jiao tong da xue xue bao 2013-04, Vol.18 (2), p.186-189
Main Author: 唐伟琴 黄诗尧 张少睿 李大永 彭颖红
Format: Article
Language:English
Subjects:
Architecture
Computer Science
Electrical Engineering
Engineering
Evolution
Extrusion
Life Sciences
Magnesium base alloys
Materials Science
Mathematical models
Stress strain curves
Stress-strain relationships
Surface layer
Texture
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description 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 {1012}（1011） 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.
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1995-8188
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source Springer Nature
subjects Architecture
Computer Science
Electrical Engineering
Engineering
Evolution
Extrusion
Life Sciences
Magnesium base alloys
Materials Science
Mathematical models
Stress strain curves
Stress-strain relationships
Surface layer
Texture
title Polycrystalline Behavior Analysis of Extruded Magnesium Alloy AZ31
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