期刊
MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION
卷 71, 期 2, 页码 196-208出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/maco.201911137
关键词
corrosion behavior; cytocompatibility; histocompatibility; zinc-zirconium binary alloy
资金
- National Natural Science Foundation of China [51301193]
- Public welfare project of Zhejiang Province [2015C31031]
- Natural Science Foundation of Ningbo [2015A610070]
Zinc-based metals have attracted attention as biodegradable implant materials for medical applications. New alloying systems are still being tried. In this study, three kinds of extruded zinc-zirconium alloys (R1, R2, and R3) were prepared, and two of the most important performance of corrosion characteristics and biocompatibility in vitro/in vivo were carefully examined. We found that zirconium content did not linearly influence the corrosion behavior. Zirconium improved the zinc-zirconium alloy corrosion potential, but the strengthening effect was weakened due to the ZrZn22 phase, leading to microgalvanic corrosion. The alloy with zirconium content of 0.8% (R2) showed high corrosion resistance and minimum initial corrosion rate in the corrected simulated body fluid. R2 alloy also exhibited favorable cytocompatibility and biological histocompatibility.
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