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Electrochemical corrosion, wear and cell behavior of ZrO2/TiO2 alloyed layer on Ti-6Al-4V

Publication date:

June 2018


Source:Bioelectrochemistry, Volume 121

Author(s): Jianfang Li, Xiaojing He, Guannan Zhang, Ruiqiang Hang, Xiaobo Huang, Bin Tang, Xiangyu Zhang

Ti-6Al-4V (TC4) has received increasing attention as biomaterial but also raised concerns about the long-term safety of releasing of metal ions and poor wear resistance. In this work, an ZrO2/TiO2 alloyed layer was prepared on TC4 by plasma surface alloying with Zr and subsequently annealed in the air for improved corrosion and wear resistant. To assess the corrosion performance of the alloyed layer, the specimens were measured by open circuit potential, electrochemical impedance spectroscopy and potentiodynamic polarization in simulated body fluid solution. The result shows that the ZrO2/TiO2 alloyed layer exhibits strikingly high polarization resistance, wide passive region and very low current density, indicating the excellent corrosion resistance. The layer also displays significant improvement of wear resistance. Furthermore, the alloyed layer restricts cell adhesion and spreading. We infer that the ZrO2/TiO2 alloyed layer might be potentially useful implanted devices such as biosensors, bioelectronics or drug delivery devices.





Authors:   Author(s): Jianfang Li, Xiaojing He, Guannan Zhang, Ruiqiang Hang, Xiaobo Huang, Bin Tang, Xiangyu Zhang
Journal:   Bioelectrochemistry
Volume:   121
Year:   2018
Pages:   105
DOI:   10.1016/j.bioelechem.2018.01.011
Publication date:   15-Apr-2018
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  • bioelectronics
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