Syntheses and tribological property of CrMoN/MoS2 multilayer films on piston rings of heavy vehicle engine

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• 作者：Xiancheng Wang 王宪憿/a> ; Qi Li 李奇 ; Ruoting Li…
• 关键词：CrMoN /MoS2 multilayer films ; piston ring ; cylinder liner ; wear mechanisms
• 刊名：Journal of Wuhan University of Technology--Materials Science Edition
• 出版年：2016
• 出版时间：April 2016
• 年：2016
• 卷：31
• 期：2
• 页码：429-434
• 全文大小：1,748 KB
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• 作者单位：Xiancheng Wang 王宪成 (1)
  Qi Li 李奇 (1)
  Ruoting Li (1)
  Yuelan Di (2)
  
  1. Department of Mechanical Engineering, Academy of Armored Forces Engineering, Beijing, 100072, China
  2. Department of Equipment Repairing and Remanufacture Engineering, Academy of Armored Force Engineering, Beijing, 100072, China
  
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Materials Science
  Chinese Library of Science
  
• 出版者：Wuhan University, co-published with Springer
• ISSN：1993-0437

文摘

In order to prolong the service life of piston rings of heavy vehicle engine and decrease the friction and wear of piston rings and cylinder liner, CrMoN/MoS₂ multilayer films were deposited on the surface of rings by magnetron sputtering and low temperature ion sulfuration. FESEM equipped with EDX was adopted to analyze the compositions and morphologies of surface, cross-section, and wear scars of the multilayer films. The nano-hardness and Young’s modulus of the films were measured by a nano tester. Tribological properties of the films were tested by an SRV®4 wear tester. The experimental results indicate that the structures of the multilayer films are dense and compact. The films possess nano hardness value of approximately 26.7 GPa and superior ability of plastic deformation resistance. The multilayer films can activate solid lubricating, and possess an excellent antifriction and wear resistance under the conditions of heavy load, high frequency, high temperature, and dynamic load.