Tribocorrosion behavior of DLC-coated CoCrMo alloy in simulated biological environment

被引：59

作者：

Liu, Jia ^{[1
]}

Wang, Xue ^{[1
]}

Wu, B. J. ^{[1
]}

Zhang, T. F. ^{[1
]}

Leng, Y. X. ^{[1
]}

Huang, Nan ^{[1
]}

机构：

[1] SW Jiaotong Univ, Key Lab Adv Technol Mat, Minist Educ, Sch Mat Sci & Engn, Chengdu 610031, Sichuan, Peoples R China

来源：

VACUUM | 2013年 / 92卷

关键词：

Tribocorrosion; CoCrMo alloy; Diamond like carbon (DLC); Open circuit potential (OCP); Protein; TRIBOLOGICAL PERFORMANCE; CORROSION PROPERTIES; CARBON COATINGS; BIOTRIBOCORROSION; COBALT; WEAR;

D O I：

10.1016/j.vacuum.2012.11.017

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Due to renewed interest in hard-on-hard prosthetic joint replacements, especially metal-on-metal (MOM) and ceramic-on-metal joints (COM), concerns about debris and released metal ions from wear and mechanical-enhanced electrochemical (tribocorrosion) processes have raised. In order to reduce the metal debris quantity and the release of metal ions, a diamond like carbon (DLC) film is deposited on CoCrMo alloy by using a filtered cathodic vacuum arc technique (FCVA). The tribocorrosion behavior of DLC coated CoCrMo alloy is studied in bovine calf serum and 0.9% NaCl solution by using a linear reciprocating pin-on-plate tribometer with an integrated electrochemical cell. The open circuit potential (OCP) and the polarization test are monitored during the reciprocating pin-on-plate test. The results show that the absorbed protein layer on DLC surface play a positive role in reducing wear and metal ion release. The presence of DLC layer improves the tribocorrosion resistance of CoCrMo alloy. And The DLC film has a potential application on hard-on-hard prosthetic joint replacements and it can effectively reduce the metal debris quantity and the release of metal ions. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：39 / 43

页数：5

共 26 条

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