Huehnerschulte, T.A.; Angrisani, N.; Rittershaus, D.; Bormann, Dirk; Windhagen, H. et al.: In vivo corrosion of two novel magnesium alloys ZEK100 and AX30 and their mechanical suitability as biodegradable implants. In: Materials 4 (2011), Nr. 6, S. 1144-1167. DOI: https://doi.org/10.3390/ma4061144
Abstract: | |
In magnesium alloys, the components used modify the alloy properties. For magnesium implants in contact with bone, rare earths alloys are commonly examined. These were shown to have a higher corrosion resistance than other alloys and a high mechanical strength, but their exact composition is hard to predict. Therefore a reduction of their content could be favorable. The alloys ZEK100 and AX30 have a reduced content or contain no rare earths at all. The aim of the study was to investigate their in vivo degradation and to assess the suitability of the in vivo μCT for the examination of their corrosion. Implants were inserted in rabbit tibiae. Clinical examinations, X-rays and in vivo μCT scans were done regularly. Afterwards implants were analyzed with REM, electron dispersive X-ray (EDX), weighing and mechanical testing. The in vivo μCT is of great advantage, because it allows a quantification of the corrosion rate and qualitative 3D assessment of the corrosion morphology. The location of the implant has a remarkable effect on the corrosion rate. Due to its mechanical characteristics and its corrosion behavior, ZEK100 was judged to be suitable, while AX30, which displays favorable degradation behavior, has too little mechanical strength for applications in weight bearing bones. | |
License of this version: | CC BY-NC-SA 3.0 Unported |
Document Type: | Article |
Publishing status: | publishedVersion |
Issue Date: | 2011 |
Appears in Collections: | Fakultät für Maschinenbau |
pos. | country | downloads | ||
---|---|---|---|---|
total | perc. | |||
1 | Germany | 163 | 74.43% | |
2 | United States | 27 | 12.33% | |
3 | China | 13 | 5.94% | |
4 | Ukraine | 2 | 0.91% | |
5 | Australia | 2 | 0.91% | |
6 | Russian Federation | 1 | 0.46% | |
7 | Romania | 1 | 0.46% | |
8 | Netherlands | 1 | 0.46% | |
9 | Mexico | 1 | 0.46% | |
10 | Anonymous Proxy | 1 | 0.46% | |
other countries | 7 | 3.20% |
Hinweis
Zur Erhebung der Downloadstatistiken kommen entsprechend dem „COUNTER Code of Practice for e-Resources“ international anerkannte Regeln und Normen zur Anwendung. COUNTER ist eine internationale Non-Profit-Organisation, in der Bibliotheksverbände, Datenbankanbieter und Verlage gemeinsam an Standards zur Erhebung, Speicherung und Verarbeitung von Nutzungsdaten elektronischer Ressourcen arbeiten, welche so Objektivität und Vergleichbarkeit gewährleisten sollen. Es werden hierbei ausschließlich Zugriffe auf die entsprechenden Volltexte ausgewertet, keine Aufrufe der Website an sich.