Harmonizing microstructures and enhancing mechanical resilience : Novel powder metallurgy approach for Zn–Mg alloys

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F24%3A43929368" target="_blank" >RIV/60461373:22310/24:43929368 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68378271:_____/24:00587849 RIV/00216208:11320/24:10493286

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S2238785424015345" target="_blank" >https://www.sciencedirect.com/science/article/pii/S2238785424015345</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jmrt.2024.06.223" target="_blank" >10.1016/j.jmrt.2024.06.223</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Harmonizing microstructures and enhancing mechanical resilience : Novel powder metallurgy approach for Zn–Mg alloys

Popis výsledku v původním jazyce

Zinc alloys are recognised for their excellent biocompatibility and favourable corrosion rates, making them suitable for bioabsorbable implants. However, their mechanical properties necessitate improvement to fulfil the rigorous requirements of biomedical applications. This research focuses on engineering pseudo-harmonic structures within zinc alloys through a comprehensive method combining mechanical alloying, spark plasma sintering, and hot extrusion techniques. This fabrication process results in a composite material characterised by a soft core surrounded by a continuous, three-dimensional, ultrafine-grained hard shell. The experiment involved blending pure zinc with Zn–1Mg alloy powder, leading to the formation of both ductile zinc and fine-grained Zn–1Mg regions. While the Mg2Zn11 intermetallic phase was found to enhance the alloy&apos;s mechanical strength, the presence of oxide shells adversely affected the material&apos;s properties. The elimination of these shells via hot extrusion markedly improved the alloy&apos;s tensile strength, reaching an average value of tensile strength of 333 ± 7 MPa. This study provides significant insights into the material engineering of zinc-based alloys for biodegradable implant applications, demonstrating a viable approach to optimising their mechanical performance.

Název v anglickém jazyce

Harmonizing microstructures and enhancing mechanical resilience : Novel powder metallurgy approach for Zn–Mg alloys

Popis výsledku anglicky

Zinc alloys are recognised for their excellent biocompatibility and favourable corrosion rates, making them suitable for bioabsorbable implants. However, their mechanical properties necessitate improvement to fulfil the rigorous requirements of biomedical applications. This research focuses on engineering pseudo-harmonic structures within zinc alloys through a comprehensive method combining mechanical alloying, spark plasma sintering, and hot extrusion techniques. This fabrication process results in a composite material characterised by a soft core surrounded by a continuous, three-dimensional, ultrafine-grained hard shell. The experiment involved blending pure zinc with Zn–1Mg alloy powder, leading to the formation of both ductile zinc and fine-grained Zn–1Mg regions. While the Mg2Zn11 intermetallic phase was found to enhance the alloy&apos;s mechanical strength, the presence of oxide shells adversely affected the material&apos;s properties. The elimination of these shells via hot extrusion markedly improved the alloy&apos;s tensile strength, reaching an average value of tensile strength of 333 ± 7 MPa. This study provides significant insights into the material engineering of zinc-based alloys for biodegradable implant applications, demonstrating a viable approach to optimising their mechanical performance.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

<a href="/cs/project/GF21-11439K" target="_blank" >GF21-11439K: Vývoj pokročilých bioabsorbovatelných materiálů na bázi zinku postupy práškové metalurgie</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2024

Kód důvěrnosti údajů

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

Název periodika

Journal of Materials Research and Technology-JMR&amp;T

ISSN

2238-7854

e-ISSN

2214-0697

Svazek periodika

31

Číslo periodika v rámci svazku

July-August 2024

Stát vydavatele periodika

BR - Brazilská federativní republika

Počet stran výsledku

13

Strana od-do

2807-2819

Kód UT WoS článku

001269253900001

EID výsledku v databázi Scopus

2-s2.0-85198038790