ECAP processing-based improvement of mechanical and corrosion properties of Mg-Li-Y alloys designed for biomedical applications

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F25%3A10498992" target="_blank" >RIV/00216208:11320/25:10498992 - isvavai.cz</a>
Alternative codes found
RIV/60461373:22310/25:43933115
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=~QnlvCX-cB" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=~QnlvCX-cB</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.jmrt.2025.04.246" target="_blank" >10.1016/j.jmrt.2025.04.246</a>

Result language
angličtina
Original language name
ECAP processing-based improvement of mechanical and corrosion properties of Mg-Li-Y alloys designed for biomedical applications
Original language description
A selection of pre-extruded alloys from the Mg-Li-Y system designed for biodegradable orthopedic implant applications was processed by equal channel angular pressing (ECAP). The effect of the resulting microstructure and texture on the mechanical and corrosion performance was investigated. Whereas the single-phase matrix Mg-2Li-2Y, Mg-2Li-4Y, Mg-4Li-2Y, and Mg-4Li-4Y alloys (wt. %) exhibited nearly fully recrystallized finegrained microstructure, the hcp alpha-phase of the dual phase hcp + bcc Mg-8Li-1Y alloy exhibited bimodal microstructure. The effect of Li alloying on the activation of non-basal slip systems during ECAP processing gave rise to specific textural components and, during uniaxial tensile and compressive loading, contributed to excellent ductility of the investigated alloys. The fine-grained microstructure led to sufficient strength and low yield asymmetry. The resistance to the initial corrosion attack was partially compromised by the numerous Mg24Y5 precipitates observed in the microstructure of all five alloys. The immersion tests revealed comparatively high corrosion resistance approaching the target values required for internal fixation implants.
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
10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Project
<a href="/en/project/GC22-21122J" target="_blank" >GC22-21122J: Advanced magnesium materials for load-bearing applications in medicine</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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