Abstract
Abstract Nonhydrogenous Diamond-like carbon (DLC) thin film was deposited on the surface of 20CrNiMo alloy by hollow cathode glow discharge technique. The high-purity graphite was selected as the cathode and Ar as the working gas. It is aimed to reduce the friction coefficient of the 20CrNiMo and to improve the property of the wear-resistance. The structure of the DLC thin film was analyzed by Laser Raman spectroscope. The surface morphology was observed through Atomic Force Microscope (AFM). The adhesion between the DLC thin film and the substrate was investigated with the scribe testing. The morphology of the scratch was observed by the Scanning Electron Microscope (SEM). The friction and wear behavior of the DLC thin film under dry sliding against GCr15 steel was evaluated on a ball-on-disc test rig. The results showed that it was feasible to prepare a DLC thin film of 0.6 μm thickness by this experimental process. The surface roughness Ra was about 7∼8 nm. The DLC thin film has a good adhesion of critical load 52N. It has been found that the DLC thin film has excellent friction and wear-resistant behaviors. The friction coefficient of the 20CrNiMo substrate was about 0.50 under dry sliding against the steel, while the DLC thin film experienced much abated friction coefficient to 0.15 under the same testing condition.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
