Crystallographic slips and twinning activity in AZ31 magnesium alloy during different modes of deformation on the basis of diffraction experiment and modelling
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F25%3A10512184" target="_blank" >RIV/00216208:11320/25:10512184 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=WRRq3zDn9p" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=WRRq3zDn9p</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.jma.2025.08.035" target="_blank" >10.1016/j.jma.2025.08.035</a>
Alternative languages
Result language
angličtina
Original language name
Crystallographic slips and twinning activity in AZ31 magnesium alloy during different modes of deformation on the basis of diffraction experiment and modelling
Original language description
This study investigates the plastic deformation behaviour of the AZ31 magnesium alloy under various uniaxial loading conditions using in-situ neutron diffraction, the crystallite group method (CGM), and crystal plasticity modelling. A key novelty of this work is the direct, model independent determination of resolved shear stress (RSS) values for individual slip and twinning systems, as well as their critical values (CRSS), derived from lattice strains in grains with preferred orientations. The experiment was extended beyond the conventional loading paths along the normal direction (ND) and rolling direction (RD) to include compression at angles of 30° and 60° from the ND (referred to as NDC30 and NDC60 tests), which had not been investigated in previous studies. Notably, the NDC30 test, combined with diffraction measurements, was specifically designed to activate basal slip in the majority of grains while minimizing twinning, enabling clear identification of this slip system and accurate determination of its CRSS. For the first time, hardening parameters were determined by comparing the model predicted values of RSS with those obtained from diffraction measurements for each active system. These data, together with the results of macroscopic tests, were used to calibrate an elastic-plastic self-consistent (EPSC) model, which accurately reproduced stress partitioning under applied load, texture evolution, and twin activity. The integrated methodology enhances the reliability of CRSS input and improves the modelling of anisotropic plasticity in magnesium alloys by tuning intergranular interactions based on a modified Eshelby inclusion approach.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10302 - Condensed matter physics (including formerly solid state physics, supercond.)
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Magnesium and Alloys
ISSN
2213-9567
e-ISSN
2213-9567
Volume of the periodical
2025
Issue of the periodical within the volume
neuveden
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
29
Pages from-to
1-29
UT code for WoS article
001721545400001
EID of the result in the Scopus database
2-s2.0-105017045694