Surface Corrosion Resistance in Turning of Titanium Alloy
Joint Authors
Zhang, Rui
Ai, Xing
Wan, Yi
Liu, Zhanqiang
Zhang, Dong
Feng, Sheng
Source
International Journal of Corrosion
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-08-27
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
This work addresses the issues associated with implant surface modification.
We propose a method to form the oxide film on implant surfaces by dry turning to generate heat and injecting oxygen-rich gas at the turning-tool flank.
The morphology, roughness, composition, and thickness of the oxide films in an oxygen-rich atmosphere were characterized using scanning electron microscopy, optical profiling, and Auger electron spectroscopy.
Electrochemical methods were used to study the corrosion resistance of the modified surfaces.
The corrosion resistance trends, analyzed relative to the oxide film thickness, indicate that the oxide film thickness is the major factor affecting the corrosion resistance of titanium alloys in a simulated body fluid (SBF).
Turning in an oxygen-rich atmosphere can form a thick oxide film on the implant surface.
The thickness of surface oxide films processed at an oxygen concentration of 80% was improved to 4.6 times that of films processed at an oxygen concentration of 21%; the free corrosion potential shifted positively by 0.357 V, which significantly improved the corrosion resistance of titanium alloys in the SBF.
Therefore, the proposed method may (partially) replace the subsequent surface oxidation.
This method is significant for biomedical development because it shortens the process flow, improves the efficiency, and lowers the cost.
American Psychological Association (APA)
Zhang, Rui& Ai, Xing& Wan, Yi& Liu, Zhanqiang& Zhang, Dong& Feng, Sheng. 2015. Surface Corrosion Resistance in Turning of Titanium Alloy. International Journal of Corrosion،Vol. 2015, no. 2015, pp.1-8.
https://search.emarefa.net/detail/BIM-1065315
Modern Language Association (MLA)
Zhang, Rui…[et al.]. Surface Corrosion Resistance in Turning of Titanium Alloy. International Journal of Corrosion No. 2015 (2015), pp.1-8.
https://search.emarefa.net/detail/BIM-1065315
American Medical Association (AMA)
Zhang, Rui& Ai, Xing& Wan, Yi& Liu, Zhanqiang& Zhang, Dong& Feng, Sheng. Surface Corrosion Resistance in Turning of Titanium Alloy. International Journal of Corrosion. 2015. Vol. 2015, no. 2015, pp.1-8.
https://search.emarefa.net/detail/BIM-1065315
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1065315