Effect of surface treatments on fretting fatigue damage of biomedical titanium alloys

被引：67
|
作者：
Vadiraj, Aravind [1 ]
Kamaraj, M. [1 ]
机构：
[1] Indian Inst Technol, Dept Met & Mat Engn, Madras 600036, Tamil Nadu, India
来源：
TRIBOLOGY INTERNATIONAL | 2007年 / 40卷 / 01期
关键词：
titanium alloys; surface modification; fretting fatigue; biomaterials;
D O I：
10.1016/j.triboint.2006.02.064
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
Fretting fatigue is an adhesive wear damage caused by tangential micromotion under normal force at contact areas. It is observed along the contact points of hip implants and bone plates. Surface-modified biomedical titanium alloys offer better resistance against fretting damage. PVD TiN coatings and plasma nitriding have proved effective in minimizing friction and delaying the failure of materials. In the present study, attempt has been made to explain the fretting fatigue failure mechanism sequence of PVD TiN-coated and plasma-nitrided Ti-6AlI-4V and Ti-6Al-4V couple through friction measurement and microscopic examination. (c) 2006 Published by Elsevier Ltd.
引用
收藏
页码：82 / 88
页数：7
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