ECAP processing-based improvement of mechanical and corrosion properties of Mg-Li-Y alloys designed for biomedical applications
Identifikátory výsledku
Kód výsledku v 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>
Nalezeny alternativní kódy
RIV/60461373:22310/25:43933115
Výsledek na webu
<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>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
ECAP processing-based improvement of mechanical and corrosion properties of Mg-Li-Y alloys designed for biomedical applications
Popis výsledku v původním jazyce
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.
Název v anglickém jazyce
ECAP processing-based improvement of mechanical and corrosion properties of Mg-Li-Y alloys designed for biomedical applications
Popis výsledku anglicky
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.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
10302 - Condensed matter physics (including formerly solid state physics, supercond.)
Návaznosti výsledku
Projekt
<a href="/cs/project/GC22-21122J" target="_blank" >GC22-21122J: Pokročilé slitiny hořčíku pro odbouratelné zátěžové implantáty</a><br>
Návaznosti
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Ostatní
Rok uplatnění
2025
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Journal of Materials Research and Technology
ISSN
2238-7854
e-ISSN
2214-0697
Svazek periodika
36
Číslo periodika v rámci svazku
neuveden
Stát vydavatele periodika
BR - Brazilská federativní republika
Počet stran výsledku
15
Strana od-do
6024-6038
Kód UT WoS článku
001483135600001
EID výsledku v databázi Scopus
2-s2.0-105025419492