Title

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

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

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

subscription content

Research Themes

Natural and Built Environments

Priority Areas

Engineering, technology and nanotechnology

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