Micro-abrasion–corrosion behaviour of a biomedical Ti–25Nb–3Mo–3Zr–2Sn alloy in simulated physiological fluid. (October 2016)

• Record Type: Journal Article
• Authors: Wang, Zhenguo; Li, Yan; Huang, Weijiu; Chen, Xiaoli; He, Haoran
• Is Part Of: Journal of the mechanical behavior of biomedical materials. Volume 63(2016)
• Page Start: 361
• Page End: 374
• Publication Date: 2016-10
• Subjects: Biomedical material -- Ti–25Nb–3Mo–3Zr–2Sn -- Micro-abrasion–corrosion -- Hank׳s solution -- Abrasion maps; Biomedical materials -- Periodicals; Biomedical materials -- Mechanical properties -- Periodicals; Biomedical materials; Biomedical materials -- Mechanical properties; Periodicals; Electronic journals; 610.28
• DOI: 10.1016/j.jmbbm.2016.07.010
• Languages: English
• ISSNs: 1751-6161

Abstract

Abstract: The micro-abrasion–corrosion behaviour of the biomedical Ti–25Nb–3Mo–3Zr–2Sn alloy in Hank׳s solution with protein has been investigated using electrochemical measurements, tribological tests and scanning electron microscope (SEM) observations. The potentiodynamic polarization tests showed that the corrosion potential ( E corr ) exhibits the maximum value at the abrasive concentration of 0.05 g cm −3 despite of the load level. The tribological results indicated that the total material loss of the Ti–25Nb–3Mo–3Zr–2Sn alloy during micro-abrasion increased with the increasing abrasive concentration at a certain applied load. When the abrasive concentration is no more than 0.15 g cm −3, the total material loss increases with increasing load, while the total material loss exhibits the maximum value at a moderate load in case of higher abrasive concentration levels. This was ascribed to the three-body or two-body micro-abrasion–corrosion at different abrasive concentration levels. The wastage map, abrasion mode map and synergy map associated with the applied load and the abrasive concentration were constructed to evaluate the micro-abrasion–corrosion behaviour of the Ti–25Nb–3Mo–3Zr–2Sn alloy in potential biomedical applications.