The temperature effect on the plastic deformation of the Mg88Zn7Y5 alloy with LPSO phase studied by in-situ synchrotron radiation diffraction

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F21%3A00545943" target="_blank" >RIV/61389005:_____/21:00545943 - isvavai.cz</a>
Alternative codes found
RIV/00216208:11320/21:10437608
Result on the web
<a href="https://doi.org/10.1016/j.intermet.2021.107321" target="_blank" >https://doi.org/10.1016/j.intermet.2021.107321</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.intermet.2021.107321" target="_blank" >10.1016/j.intermet.2021.107321</a>

Result language
angličtina
Original language name
The temperature effect on the plastic deformation of the Mg88Zn7Y5 alloy with LPSO phase studied by in-situ synchrotron radiation diffraction
Original language description
The temperature dependence of the compressive deformation behavior of the Mg88Zn7Y5 alloy with a high volume fraction (similar to 85%) of the long-period stacking-ordered (LPSO) phase was studied by in-situ synchrotron radiation diffraction. The as-extruded microstructure exhibits a fully recrystallized alpha-Mg phase with a nearly random texture. The LPSO phase, identified as the 18R polytype, is represented by wavy lamellae elongated along the extrusion direction and has an intensive basal texture. The alloy compressed along the extrusion direction at room temperature shows a superior yield strength of 480 MPa. With increasing deformation temperature, the yield strength is reduced by 15% at 200 degrees C and by 46% at 300 degrees C, respectively. At all tested temperatures, the basal slip is activated in the alpha-Mg matrix far below the yield strength. The macroscopic yielding of the alloy is controlled by the activation of deformation kinking in the LPSO phase. The synchrotron radiation diffraction data indicate the stress localization at kinks with respect to the grains having the same orientation.
Czech name
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Czech description
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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

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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