Influence of Modulation Ratio on the Tribological and Electrochemical Behaviors of Multilayer DLC Coatings

被引：5

作者：

Cui M. ^{[1
,2
,3
]}

Ren S. ^{[1
,2
]}

Fan X. ^{[4
]}

Zhang G. ^{[3
]}

Wang L. ^{[1
,2
]}

Xue Q. ^{[1
,2
]}

机构：

[1] Key Laboratory of Marine Materials and Related Technologies, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo

[2] Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo

[3] State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou

[4] Key Laboratory of Advanced Technologies of Materials of Ministry of Education, Southwest Jiaotong University, Chengdu

来源：

Jixie Gongcheng Xuebao/Journal of Mechanical Engineering | 2018年 / 54卷 / 06期

关键词：

Corrosion; Diamond-like carbon; Modulation ratio; Multilayer; Salt spray; Tribology;

D O I：

10.3901/JME.2018.06.025

中图分类号：

学科分类号：

摘要：

Multilayer diamond-like carbon coatings with different modulation ratio are successfully fabricated on the steel substrate by plasma enhanced chemical vapor deposition. The microstructure, mechanical properties, tribological performance and corrosion resistance of multilayer diamond like carbon (DLC) coatings are investigated by field emission scanning electron microscope (FESEM), atomic force microscope(AFM), nano-indenter, CSM tribometer and electrochemical station, respectively. Results show that multilayer DLC coating had smooth surface, dense microstructure and good adhesion between the coating and substrate. As a comparison with other coatings, the coating with modulation ratio 1:1 is optimal, and it has higher hardness, elastic modulus and critical load to inhibit the crack initiation. In addition, the coating also exhibits lower wear rate after tribological test and higher impedance value after 720 h of salt spray test. It can be concluded from the above results that the coating with modulation ratio 1:1 has excellent wear resistance and corrosion resistance. © 2018 Journal of Mechanical Engineering.

引用

页码：25 / 31

页数：6

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