| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Magnesium Technology 2025
|
| Presentation Title |
Investigating the effect of Silver on the Microstructural, Mechanical and Corrosion behavior of Mg-Zn-Ca-xAg (x=0.5,1.5 and 2.5%) alloy for Orthopedic applications |
| Author(s) |
Amarjeet Singh |
| On-Site Speaker (Planned) |
Amarjeet Singh |
| Abstract Scope |
Biomedical Mg alloys have become an ideal material for degradable implants because of their similar density and elastic modulus with human bone. In this study, Mg-2.5Zn-0.5Ca-xAg (x = 0%, 0.5%, 1.5% and 2.5 wt.%) alloys were fabricated using squeeze-cast method to enhance the comprehensive properties of the Mg-2.5Zn-0.5Ca (wt.%) alloys. The microstructure shows that the alloy possesses relatively smaller grain size of 10 μm when the addition of Ag is 2.5wt.%. The Mg-2.5Zn-0.5Ca-2.5Ag also owns the best mechanical properties whose elongation, yield strength and tensile strength. The electrochemical experiments shows that Mg-2.5Zn-0.5Ca-2.5Ag has lower corrosion current density (2.2*10-7cm2), which indicates that its corrosion resistance has been improved. After immersed in simulated body fluids at 37 ℃ for 15 days, the hydrogen release rate and degradation rate of the Mg-2.5Zn-0.5Ca-2.5Ag is significantly lower than that of Mg-2.5Zn-0.5Ca. In addition, Mg-2.5Zn-0.5Ca-2.5Ag alloy exhibits remarkable antimicrobial properties with S.aureus. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Magnesium, Biomaterials, Characterization |