Nb-60Ta-2Zr alloy exposed to simulated physiological medium: Metallic-ion release behaviour and its correlation with electrochemical properties
Document Type
Journal Article
Publication Title
Corrosion Science
Volume
196
Publisher
Elsevier
School
School of Engineering
RAS ID
40640
Funders
National Natural Science Foundation of China
Abstract
In this work, a magnetic-resonance-imaging (MRI) compatible Nb-60Ta-2Zr alloy was selected to investigate the metallic-ion release behaviour exposed to simulated physiological medium. The kinetic processes of metallic-ion release were apparently characterized in two distinct phases. In contrast, electrochemical properties were insensitive to extended exposure times. A well-defined correlation of metallic-ion release with electrochemical properties was absent until the dynamic steady state of ion release was established. XPS analysis indicated that the passive film on the Nb-60Ta-2Zr surface after 21 days of exposure was primarily composed of Nb2O5 and Ta2O5, together with trace amounts of ZrO2 and suboxides of Nb and Ta.
DOI
10.1016/j.corsci.2021.110034
Access Rights
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Comments
Lu, W. T., Zhang, L. C., & Xu, J. (2022). Nb-60Ta-2Zr alloy exposed to simulated physiological medium: Metallic-ion release behaviour and its correlation with electrochemical properties. Corrosion Science, 172, article 110034.
https://doi.org/10.1016/j.corsci.2021.110034