Corrosion behavior of Mg wires for ureteral stent in artificial urine solution

Mei, D.; Wang, C.; Nienaber, M.; Pacheco, M.; Barros, A.; Neves, S.; Reis, R.; Zhu, S.; Bohlen, J.; Letzig, D.; Guan, S.; Zheludkevich, M.; Lamaka, S.

Journalpaper

Corrosion behavior of Mg wires for ureteral stent in artificial urine solution

Abstract

Ureteral stents are a relatively new potential application for biodegradable Mg alloys. In this study, the corrosion behavior of Mg-1Zn wires and pure Mg wires in artificial urine solution (AUS) is investigated. It is found that AUS possesses a strong pH buffer effect. Hydrogen evolution measurement cannot be used for Mg corrosion test in this AUS due to the oxygen scavenging effect of sulfite, which is a component of AUS. The corrosion products consist of two layers, MgNH4PO4·6H2O and Mg(OH)2. The partially protective MgNH4PO4·6H2O slows down the Mg corrosion, but it indicates the encrustation risk on bare Mg-based ureteral stents.

DOI Link to Publication

URL: https://publications.hereon.de/id/40329/
Authors:Mei, D., Wang, C., Nienaber, M., Pacheco, M., Barros, A., Neves, S., Reis, R., Zhu, S., Bohlen, J., Letzig, D., Guan, S., Zheludkevich, M., Lamaka, S.
Year:2021
In: Corrosion Science
Volume:189
Pages:109567
Publisher:Elsevier, Orlando
Type:Journalpaper
ISSN: 0010-938X
Cite as: Mei, D.; Wang, C.; Nienaber, M.; Pacheco, M.; Barros, A.; Neves, S.; Reis, R.; Zhu, S.; Bohlen, J.; Letzig, D.; Guan, S.; Zheludkevich, M.; Lamaka, S.: Corrosion behavior of Mg wires for ureteral stent in artificial urine solution. In: Corrosion Science. Vol. 189 (2021) 109567. (DOI: /10.1016/j.corsci.2021.109567)