Corrosion Behavior of Biodegradable Zn-Based Alloy in Simulated Body Fluid (SBF)

Type : Article de conférence
Auteur(s) :  C.E. RAMOUL, A. GHARBI, A. Bachiri, F. Gasmi and S. Chettouh
Année :  2022
Domaine : Métallurgie
Conférence: 1st National Conference of Materials sciences And Engineering, (MSE’22)
Résumé en PDF :  (résumé en pdf)
Fulltext en PDF :  (.pdf)
Mots clés :  Zn-Mg alloys, Biodegradability, microstructure

Résumé : 

Biodegradable metals represent a new class of biocompatible materials, they have attracted considerable attention in recent years. Recently, zinc (Zn) alloy has been considered a promising biodegradable material due to its excellent physiological degradable behavior and acceptable biocompatibility. However, the poor mechanical properties of Zn could be significantly improved by the addition of Mg. In the present work, Zn–Mg binary alloys were investigated as potential biodegradable materials for orthopedic implant applications. The alloys were developed by a casting process and melted five-time. Corrosion tests of Zn-Mg binary alloys compared with pure Zn and pure Mg materials were performed using a simulated body fluid solution at 37 °C. Microstructure and chemical composition were investigated by electron microscopy and energy dispersive spectroscopy. Findings revealed that the mechanical properties of Zn improved through the addition of Mg. Zinc-based alloys with magnesium content from 1 to 2 showed a moderate degradation rate and can be considered promising biodegradable materials for the orthopedic application.