On the role of slip, twinning and detwinning in magnesium alloy AZ31B sheet

The paper reports experimental and numerical study of different deformation mechanisms activated in the AZ31B magnesium alloy sheet subjected to cyclic in-plane tensile – compressive deformation. The influence of slip, twinning and detwinning upon the mechanical response and texture evolution of the...

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Bibliographic Details
Published inMaterials science & engineering. A, Structural materials : properties, microstructure and processing Vol. 813; p. 141152
Main Authors Frydrych, Karol, Libura, Tomasz, Kowalewski, Zbigniew, Maj, Michał, Kowalczyk-Gajewska, Katarzyna
Format Journal Article
LanguageEnglish
Published Lausanne Elsevier B.V 05.05.2021
Elsevier BV
Subjects
AZ31B
Crystal plasticity
Deformation mechanisms
Detwinning
Evolutionary algorithm
Evolutionary algorithms
Magnesium alloys
Magnesium base alloys
Mechanical analysis
Metal sheets
Parameter identification
Plastic properties
Slip
Twinning
Crystal plasticity
Twinning
Detwinning
Magnesium alloys
AZ31B
Evolutionary algorithm
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Summary:The paper reports experimental and numerical study of different deformation mechanisms activated in the AZ31B magnesium alloy sheet subjected to cyclic in-plane tensile – compressive deformation. The influence of slip, twinning and detwinning upon the mechanical response and texture evolution of the material is thoroughly investigated. The regime of twinning and detwinning activity is assessed based on the variation of hardening modulus in the course of the process. Velocity-based large strain crystal plasticity model accounting for twinning and detwinning is formulated. The crystal plasticity model parameters are identified using the implementation of the evolutionary algorithm. Predicted activity of deformation mechanisms is discussed with respect to the experimental data.
ISSN:0921-5093
1873-4936
DOI:10.1016/j.msea.2021.141152