PT Journal
AU Boukalova, A
   Necas, D
   Dvorsky, D
   Stovicek, J
   Pokorny, J
   Kubasek, J
TI Tensile Behaviour of Zn-Mg Heterostructured Materials for Biodegradable Implant Applications
SO Manufacturing Technology Journal
PY 2025
BP 728
EP 734
VL 25
IS 6
DI 10.21062/mft.2025.078
DE Zinc Alloys; Heterostructure; Biodegradable; Microstructure; Tensile Properties
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.
ER