A novel method of experimental determination of grain stresses and critical resolved shear stresses for slip and twin systems in a magnesium alloy
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F23%3A00577193" target="_blank" >RIV/61389005:_____/23:00577193 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1016/j.measurement.2023.113469" target="_blank" >https://doi.org/10.1016/j.measurement.2023.113469</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.measurement.2023.113469" target="_blank" >10.1016/j.measurement.2023.113469</a>
Alternative languages
Result language
angličtina
Original language name
A novel method of experimental determination of grain stresses and critical resolved shear stresses for slip and twin systems in a magnesium alloy
Original language description
A novel original method of determination of stresses and critical resolved shear stresses (CRSSs) using neutron diffraction was proposed. In this method, based on the crystallite group method, the lattice strains were measured in different directions and using different reflections hkl during uniaxial deformation of magnesium alloy AZ31. The advantage of this method is that the stresses for groups of grains having similar orientations can be determined directly from measurement without any models used for data interpretation. The obtained results are unambiguous and do not depend on the models assumptions as in previous works. Moreover, it was possible for the first time to determine the uncertainty of the measured CRSS values and local stresses at groups of grains.The used methodology allowed for the determination of stress partitioning between grains having different orientations and for an explanation of the anisotropic mechanical behaviour of the strongly textured alloy. Finally, the CRSS values allowed for the validation of the type of intergranular interaction assumed in the elastic-plastic self-consistent model and for a significant reduction of the number of unknown parameters when the model is adjusted to the experimental data.
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
20501 - Materials engineering
Result continuities
Project
<a href="/en/project/EF16_013%2F0001812" target="_blank" >EF16_013/0001812: Center of Accelerators and Nuclear Analytical Methods - OP</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Measurement
ISSN
0263-2241
e-ISSN
1873-412X
Volume of the periodical
221
Issue of the periodical within the volume
NOV
Country of publishing house
GB - UNITED KINGDOM
Number of pages
26
Pages from-to
113469
UT code for WoS article
001081720000001
EID of the result in the Scopus database
2-s2.0-85171625999