Surface modification of CP-Ti to improve the fretting-corrosion resistance: Thermal oxidation vs. anodizing

被引：81
作者：
Kumar, Satendra [1 ]
Narayanan, T. S. N. Sankara [1 ]
Raman, S. Ganesh Sundara [2 ]
Seshadri, S. K. [2 ]
机构：
[1] Natl Met Lab, Madras 600113, Tamil Nadu, India
[2] Indian Inst Technol, Dept Met & Mat Engn, Madras 600036, Tamil Nadu, India
来源：
MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS | 2010年 / 30卷 / 06期
关键词：
Thermal oxidation; Anodic oxidation; CP-Titanium; Fretting-corrosion behaviour; Bio-medical application; TITANIUM-OXIDE NANOTUBES; TRIBOCORROSION BEHAVIOR; TI-6AL-4V ALLOY; ELECTROCHEMICAL FORMATION; WEAR-RESISTANCE; STAINLESS-STEEL; COATINGS; FABRICATION; TI6AL4V; GROWTH;
D O I：
10.1016/j.msec.2010.03.024
中图分类号：
TB3 [工程材料学]; R318.08 [生物材料学];
学科分类号：
0805 ; 080501 ; 080502 ;
摘要：
Fretting corrosion is one of the important reasons for the failure of prosthesis made of titanium and titanium alloys under in vivo condition. The fretting-corrosion behaviour of untreated, anodized and thermally oxidized commercially pure titanium (CP-Ti) in Ringer's solution was evaluated based on the change in free corrosion potential (FCP) measured as a function of time. A comparison of the performance of untreated, anodized and thermally oxidized CP-Ti under fretting-corrosion conditions is reported for the first time in this paper. The study reveals that surface modification of CP-Ti by both anodizing and thermal oxidation improved the fretting-corrosion resistance of CP-Ti and among them the performance of thermally oxidized CP-Ti is superior to that of the anodized one. Adhesive galling is the predominant wear mechanism for untreated CP-Ti, adhesive wear and delamination are found to be operative for anodized CP-Ti whereas an abrasive wear mechanism is operative for thermally oxidized CP-Ti when they are fretted against an alumina ball. (C) 2010 Elsevier B.V. All rights reserved.
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页码：921 / 927
页数：7
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