Investigation of the mechanical and corrosion performance of hot-extruded Mg-Li-Y alloys designed for biomedical applications

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F25%3A10506129" target="_blank" >RIV/00216208:11320/25:10506129 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60461373:22310/25:43933072

Výsledek na webu

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=sIs0iKG.Me" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=sIs0iKG.Me</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jmrt.2025.11.048" target="_blank" >10.1016/j.jmrt.2025.11.048</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Investigation of the mechanical and corrosion performance of hot-extruded Mg-Li-Y alloys designed for biomedical applications

Popis výsledku v původním jazyce

This study investigates the combined effect of Li and Y alloying on the mechanical performance and corrosion resistance of hot-extruded magnesium alloys. Five alloys from the Mg-Li-Y system with varying amounts and ratios of Li and Y, namely the single-phase matrix Mg-2Li-2Y, Mg-2Li-4Y, Mg-4Li-2Y, Mg-4Li-4Y, and the dual-phase matrix Mg-8Li-1Y (wt.%), were processed by hot extrusion. The presented microstructural investigation revealed varying levels of Y supersaturation, arising from the rapid air cooling after extrusion. The non-equilibrium distribution of Y alloying atoms and the degree of Mg-Y secondary phase formation were found to be substantially influenced by the presence of Li in the hcp matrix, in contrast to the previously investigated ECAPprocessed materials. The microstructural differences among the investigated alloys governed their performance in the mechanical and corrosion performance testing, which were conducted as a preliminary screening of their suitability for biomedical applications. Especially the best-performing Mg-4Li-4Y alloy benefited from the synergic effects of Li and Y alloying and the non-equilibrium microstructural states arising from the extrusion process, achieving an excellent balance of strength and ductility combined with a comparatively low corrosion rate in the preliminary degradation experiments.

Název v anglickém jazyce

Investigation of the mechanical and corrosion performance of hot-extruded Mg-Li-Y alloys designed for biomedical applications

Popis výsledku anglicky

This study investigates the combined effect of Li and Y alloying on the mechanical performance and corrosion resistance of hot-extruded magnesium alloys. Five alloys from the Mg-Li-Y system with varying amounts and ratios of Li and Y, namely the single-phase matrix Mg-2Li-2Y, Mg-2Li-4Y, Mg-4Li-2Y, Mg-4Li-4Y, and the dual-phase matrix Mg-8Li-1Y (wt.%), were processed by hot extrusion. The presented microstructural investigation revealed varying levels of Y supersaturation, arising from the rapid air cooling after extrusion. The non-equilibrium distribution of Y alloying atoms and the degree of Mg-Y secondary phase formation were found to be substantially influenced by the presence of Li in the hcp matrix, in contrast to the previously investigated ECAPprocessed materials. The microstructural differences among the investigated alloys governed their performance in the mechanical and corrosion performance testing, which were conducted as a preliminary screening of their suitability for biomedical applications. Especially the best-performing Mg-4Li-4Y alloy benefited from the synergic effects of Li and Y alloying and the non-equilibrium microstructural states arising from the extrusion process, achieving an excellent balance of strength and ductility combined with a comparatively low corrosion rate in the preliminary degradation experiments.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10302 - Condensed matter physics (including formerly solid state physics, supercond.)

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)

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Materials Research and Technology

ISSN

2238-7854

e-ISSN

2214-0697

Svazek periodika

39

Číslo periodika v rámci svazku

listopad-Prosinec

Stát vydavatele periodika

BR - Brazilská federativní republika

Počet stran výsledku

16

Strana od-do

6965-6980

Kód UT WoS článku

001620423600004

EID výsledku v databázi Scopus

2-s2.0-105021249750