| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Biodegradable Materials for Medical Applications II
|
| Presentation Title |
B-12: Research on Zn-Ag-Mg Alloy as a Potential Biodegradable Implant Material |
| Author(s) |
Maria Watroba, Wiktor Bednarczyk, Jakub Kawałko, Krzysztof Mech, Gabriela Boelter, Manuel Banzhaf, Piotr Bała |
| On-Site Speaker (Planned) |
Maria Watroba |
| Abstract Scope |
Biodegradable metallic materials with potential application as short-term implants have attracted great attention in recent years in the developing branch of biomaterials. Ease of manufacturing, optimal degradation rate, biocompatibility and lack of hydrogen gas evolution makes zinc a great competitor for magnesium- and iron-based alloys considered for these applications. Brittleness, poor mechanical strength, and recrystallization at room temperature of pure zinc created a challenge and the main goal of the research. The extensive SEM-EBSD and TEM microstructural characterization revealed that alloying with silver and magnesium additions and the use of plastic deformation processes resulted in grain refinement and formation of intermetallic phases, which contributed to relevant mechanical strength and ductility enhancement recorded during tensile tests. Precipitates occurring in the microstructures slightly accelerated degradation rate in static immersion test, in comparison to pure zinc. In the preliminary antibacterial test the formation of bacterial growth inhibition zone was observed around investigated samples. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |