RT Journal Article
SR Electronic
A1 Boukalová, Anna
A1 Nečas, David
A1 Dvorský, Drahomír
A1 Šťovíček, Jan
A1 Pokorný, Jan
A1 Kubásek, Jiří
T1 Tensile Behaviour of Zn-Mg Heterostructured Materials for Biodegradable Implant Applications
JF Manufacturing Technology Journal
YR 2025
VO 25
IS 6
SP 728
OP 734
DO 10.21062/mft.2025.078
UL https://journalmt.com/artkey/mft-202506-0003.php
AB Biodegradable zinc-based alloys have recently attracted attention as promising candidates for temporary implant applications due to their favourable corrosion behaviour and biocompatibility. In this study, three materials - pure Zn, Zn-1Mg alloy, and a Zn + Zn-1Mg composite - were fabricated via powder metallurgy and extrusion to evaluate their microstructural characteristics and tensile performance. The composite material was designed to combine ductile Zn regions with a reinforcing Zn-1Mg network, aiming to achieve a balance of strength and ductility. Microstructural analysis revealed coarse-grained Zn regions surrounded by ultrafine-grained Zn-1Mg areas containing Mg₂Zn₁₁ particles, with oxide shells present at the Zn/Zn-1Mg interfaces. Tensile testing showed improvement in mechanical performance compared to the individual constituents. However, the oxide shells prevented effective load transfer between the fine-grained and coarse-grained areas of the microstructure.