title: Micro-abrasion-corrosion behaviour of a biomedical Ti-25Nb-3Mo-3Zr-2Sn alloy in simulated physiological fluid.
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 (Ecorr) exhibits the maximum value at the abrasive concentration of 0.05gcm(-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 0.15gcm(-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.
authors.affiliation: School of Materials Science and Engineering, Beihang University, Beijing 100191, China. Electronic address: wzghappy@buaa.edu.cn.
authors.forename: Zhenguo
authors.initials: Z
authors.lastname: Wang
authors.affiliation: School of Materials Science and Engineering, Beihang University, Beijing 100191, China; Beijing Key Laboratory for Advanced Functional Materials and Thin Film Technology, Beihang University, Beijing 100191, China. Electronic address: liyan@buaa.edu.cn.
authors.forename: Yan
authors.initials: Y
authors.lastname: Li
authors.affiliation: School of Materials Science and Engineering, Chongqing University of Technology, Chongqing 400054, China. Electronic address: huangweijiu@cqut.edu.cn.
authors.forename: Weijiu
authors.initials: W
authors.lastname: Huang
authors.affiliation: School of Materials Science and Engineering, Chongqing University of Technology, Chongqing 400054, China.
authors.forename: Xiaoli
authors.initials: X
authors.lastname: Chen
authors.affiliation: School of Materials Science and Engineering, Chongqing University of Technology, Chongqing 400054, China.
authors.forename: Haoran
authors.initials: H
authors.lastname: He
mesh_terms: D000497:Alloys / Q000737:chemistry*; D001672:Biocompatible Materials / Q000737:chemistry*; D003343:Corrosion; D008422:Materials Testing; D014025:Titanium
chemical_list: D000497:Alloys; D001672:Biocompatible Materials; C583186:Ti-25Nb-3Mo-3Zr-2Sn alloy; D014025:Titanium
keywords: Abrasion maps; Biomedical material; Hank׳s solution; Micro-abrasion–corrosion; Ti–25Nb–3Mo–3Zr–2Sn