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Lookup NU author(s): Manuel Banzhaf
This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).
© 2019In this study, a new biodegradable alloy from the Zn-Ag-Zr system was investigated. Most importantly, mechanical properties and ductility were significantly improved in designed Zn1Ag0.05Zr alloy in comparison to binary Zn1Ag and previously investigated Zn0.05Zr alloys (wt%). The characterized alloy reached values of yield strength, ultimate tensile strength and elongation to failure equal to 166 ± 2 MPa, 211 ± 1 MPa and 35 ± 1%, respectively. Simultaneous addition of both alloying elements contributed to solid solution strengthening, intermetallic Zr-rich phase formation, and effective grain refinement. Immersion and electrochemical in vitro corrosion tests showed a slight increase of degradation rate in ternary alloy up to 17.1 ± 1.0 μm/year and no significant loss of mechanical properties after 28-day of immersion in simulated physiological solution. In addition, the preliminary antimicrobial studies show antimicrobial activity of the investigated Zn-Ag-Zr alloy against Escherichia coli and Staphylococcus aureus. The presented results demonstrate that newly developed Zn-based alloy can be considered as a promising biodegradable material for medical applications.
Author(s): Watroba M, Bednarczyk W, Kawalko J, Mech K, Marciszko M, Boelter G, Banzhaf M, Bala P
Publication type: Article
Publication status: Published
Journal: Materials and Design
Year: 2019
Volume: 183
Print publication date: 05/12/2019
Online publication date: 26/08/2019
Acceptance date: 22/08/2019
Date deposited: 22/08/2023
ISSN (print): 0264-1275
ISSN (electronic): 1873-4197
Publisher: Elsevier Ltd
URL: https://doi.org/10.1016/j.matdes.2019.108154
DOI: 10.1016/j.matdes.2019.108154
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