• CN:11-2187/TH
  • ISSN:0577-6686

机械工程学报 ›› 2018, Vol. 54 ›› Issue (6): 25-31.doi: 10.3901/JME.2018.06.025

• 特邀专栏:表面工程先进技术及其服役行为(下) • 上一篇    下一篇

调制比对多层DLC涂层摩擦及电化学行为的影响

崔明君1,2,3, 任思明1,2, 樊小强4, 张广安3, 王立平1,2, 薛群基1,2   

  1. 1. 中国科学院宁波材料技术与工程研究所中国科学院海洋新材料与应用技术重点实验室 宁波 315201;
    2. 中国科学院宁波材料技术与工程研究所浙江省海洋材料与防护技术重点实验室 宁波 315201;
    3. 中国科学院兰州化学物理研究所固体润滑国家重点实验室 兰州 730000;
    4. 西南交通大学材料先进技术教育部重点实验室 成都 610031
  • 收稿日期:2017-07-19 修回日期:2017-11-06 出版日期:2018-03-20 发布日期:2018-03-20
  • 作者简介:崔明君,女,1991年出生,博士研究生。主要研究方向为材料的腐蚀与磨损。E-mail:cuimingjun@nimte.ac.cn;王立平,男,1980年出生,博士,研究员。主要研究方向为碳基薄膜固体润滑材料和重防腐涂料。E-mail:wangliping@nimte.ac.cn
  • 基金资助:
    国家自然科学基金(51322508)和国家重点基础研究发展计划(973计划,2014CB643302)资助项目。

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

CUI Mingjun1,2,3, REN Siming1,2, FAN Xiaoqiang4, ZHANG Guangan3, WANG Liping1,2, XUE Qunji1,2   

  1. 1. Key Laboratory of Marine Materials and Related Technologies, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201;
    2. Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201;
    3. State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000;
    4. Key Laboratory of Advanced Technologies of Materials of Ministry of Education, Southwest Jiaotong University, Chengdu 610031
  • Received:2017-07-19 Revised:2017-11-06 Online:2018-03-20 Published:2018-03-20

摘要: 研究调制比对多层类金刚石(Diamond-like carbon,DLC)涂层摩擦及腐蚀行为的影响。采用等离子体增强化学气相沉积技术成功制备了不同调制比的多层DLC涂层。利用扫描电子显微镜、原子力显微镜、划痕仪、摩擦磨损试验机及电化学工作站等表征手段评价了不同调制比多层DLC涂层的结构特点、力学性能、摩擦学性能以及耐腐蚀性能。结果表明:所制备涂层表面光滑、结构致密、膜基界面结合良好。其中1∶1为多层DLC涂层最佳调制比,该调制比涂层的硬度、弹性模量和抗裂纹萌生的临界载荷最大。同时,摩擦试验表明1∶1涂层具有最低的磨损率,且经720 h盐雾试验后仍然表现出较高的阻抗值。通过以上结果可以得出当调制比为1∶1时,多层DLC涂层具有良好的摩擦学性能及耐腐蚀性能。

关键词: 调制比, 多层, 腐蚀, 类金刚石, 摩擦, 盐雾

Abstract: 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.

Key words: corrosion, diamond-like carbon, modulation ratio, multilayer, salt spray, tribology

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