Influence of duty cycle on microstructure, tribological and corrosion behaviors of a-C/a-C:Ti multilayer films

被引：13
作者：
Bai, W. Q.
Wang, X. L.
Gu, C. D.
Tu, J. P. [1 ]
机构：
[1] Zhejiang Univ, State Key Lab Silicon Mat, Hangzhou 310027, Peoples R China
来源：
THIN SOLID FILMS | 2015年 / 584卷
基金：
中国国家自然科学基金;
关键词：
Amorphous carbon; Multilayer; Duty cycle; Mechanical property; Corrosion resistance; DIAMOND-LIKE CARBON; TIC/A-C NANOCOMPOSITE; BIAS-GRADED DEPOSITION; MECHANICAL-PROPERTIES; THIN-FILMS; AMORPHOUS-CARBON; DLC FILMS; HANKS SOLUTION; WATER LUBRICATION; RAMAN-SPECTRA;
D O I：
10.1016/j.tsf.2015.01.015
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
a-C/a-C:Ti multilayer films were deposited on medical Ti6Al4V alloy using a closed field unbalanced magnetron sputtering system with various substrate bias duty cycle. The tribological and corrosion behaviors of the multilayer films in Hank's solution were evaluated by a ball-on-disk tribometer and an electrochemical workshop. The duty cycle has a significant effect on the bonding structure, and mechanical and tribological properties of the films. The polarization resistance of the films on Ti alloy is approximately ten times more than that of Ti6Al4V which indicates that higher corrosion resistance can be achieved in Hank's solution at 37 degrees C. However, the polarization resistance and corrosion current do not change so much with the variation of duty cycle, implying that its influence on corrosion behavior of these a-C/a-C:Ti multilayer films is not so obvious. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：214 / 221
页数：8
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