7-days of FREE Audio papers, translation & more with Prime
7-days of FREE Prime access
7-days of FREE Audio papers, translation & more with Prime
7-days of FREE Prime access
https://doi.org/10.1016/j.diamond.2021.108308
Copy DOIJournal: Diamond and Related Materials | Publication Date: Feb 6, 2021 |
Citations: 24 |
There are many defects in the bending part of U-type pipe, which will directly affect its safety and service life. DLC (Diamond Like Carbon) film is considered as an effective protective film because of its excellent properties. However, it is very difficult to deposit DLC films on the inner wall of U-type pipes with double stress. The purpose of this paper is to deposit DLC film with high hardness, wear resistance and corrosion resistance on the inner wall of U-type pipes by hollow cathode PECVD. The microstructure, mechanical properties, tribological and corrosive behaviors were characterized by the Raman spectroscopy, ATR-FTIR, SEM, nano-indention, polarization, electrochemical impedance spectroscopy and ball-on-disk tribological tests. Results indicates that the U-type pipe inner DLC films shows the lower stress level. Compared with the bare substrate, it presents the higher hardness (7– 14 GPa), elastic factor (>0.1) and plastic factor (>0.1) and the above DLC film exhibits the lower corrosion current density, which is about 1–2 orders of magnitude lower than the bare substrate. Moreover, the DLC films also possesses the lower friction coefficient (0.04– 0.06) and wear rate (2.67– 5.93E-7 mm3N−1 m−1). Therefore, the DLC films exhibits the greater mechanical, tribological and anti-corrosion performance, indicating that the above DLC films effectively protects U-shaped pipe and prolongs its service life.
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: 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.