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Lubricants 2017, 5(2), 13; doi:10.3390/lubricants5020013

The Tribological Performance of CrMoN/MoS2 Solid Lubrication Coating on a Piston Ring

Department of Equipment Remanufacturing Engineering, Academy of Armored Forces Engineering, Beijing 100072, China
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Author to whom correspondence should be addressed.
Academic Editor: Zhengyi Jiang
Received: 24 February 2017 / Revised: 5 April 2017 / Accepted: 12 April 2017 / Published: 23 May 2017
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Abstract

In order to improve the tribological properties of an engine piston ring and enhance its service life, magnetron sputtering technology and low temperature ion sulphurizing treatment technology were used to prepare CrMoN/MoS2 solid lubricant coating on the surface of an engine piston ring. The morphologies and compositions of the surface and cross-section of the sulfuration layer were analyzed by field emission scanning electron microscopy (FESEM), and wear property under high load, high speed and high temperature conditions were tested by a SRV®4 friction and wear testing machine. The results show that the CrMoN/MoS2 composite coatings appear as a dense grain structure, and the coating is an ideal solid lubrication layer that possesses an excellent high temperature wear resistance, reducing the engine operating temperature abrasion effectively and prolonging the service life of the engine. View Full-Text
Keywords: CrMoN/MoS2; magnetron sputtering; low temperature ion sulfurizing; solid lubrication; wear mechanism CrMoN/MoS2; magnetron sputtering; low temperature ion sulfurizing; solid lubrication; wear mechanism
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Di, Y.; Cai, Z.; Zhang, P. The Tribological Performance of CrMoN/MoS2 Solid Lubrication Coating on a Piston Ring. Lubricants 2017, 5, 13.

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