Abstract
The corrosion behaviour of CP-Ti and Ti-TiB composite produced by selective laser melting (SLM) in the artificial simulated body fluid (Hank's solution) at body temperature was investigated systematically by using electrochemical measurements (potentiodynamic polarisation curves and electrochemical impedance spectroscopy), together with some detailed structural characterisations. The results demonstrate that SLM-produced Ti-TiB composite samples possess better corrosion resistance than SLM-produced CP-Ti samples in Hank's solution. Due to these tiny TiB and TiB2 particles acting as the micro-cathode uniformly distributing in titanium matrix, anodic dissolution of titanium matrix in the corrosion process is prominently facilitated in early stages, followed by rapid passivation on the surface. The corrosion mechanism of Ti-TiB composite samples has also been discussed in detail in this paper.
Keywords
[RSTDPub], Corrosion resistance, passive film, selective laser melting, titanium biocomposite
Document Type
Journal Article
Date of Publication
4-1-2017
Location of the Work
United Kingdom
Publication Title
Electrochimica Acta
Publisher
Pergamon Press
School
School of Engineering
RAS ID
24012
Funding Information
This research was carried out with the support of the Australian Research Council's Project funding scheme (DP110101653). It was also supported by the Project of Shanghai Science and Technology Commission (14DZ2261000).
Funding received from the Australian Research Council (ARC)
DP110101653
First Page
89
Content Type
Full object
Last Page
97
Recommended Citation
Chen, Y., Zhang, J., Dai, N., Qin, P., Attar, H., & Zhang, L. C. (2017). Corrosion Behaviour of Selective Laser Melted Ti-TiB Biocomposite in Simulated Body Fluid. Electrochimica Acta, 232, 89-97.
Comments
This is an Author's Accepted Manuscript of:
Chen, Y., Zhang, J., Dai, N., Qin, P., Attar, H., & Zhang, L. C. (2017). Corrosion Behaviour of Selective Laser Melted Ti-TiB Biocomposite in Simulated Body Fluid. Electrochimica Acta, 232, 89-97.
https://doi.org/10.1016/j.electacta.2017.02.112