Abstract
Duplex treatment, a newly developed surface modification method, was used to improve the tribological properties of an aluminum alloy. In this paper, the 2024 Al was anodically oxidized first and then coated with REMF–MoS 2–Au nanocomposite film and Ti/Ag dual layer film by rf-sputtering and multi-arc ion-plating, respectively. It is shown that duplex treatment, especially sputtered REMF–MoS 2–Au nanocomposite film, can decrease the friction coefficient and improve the endurance life of 2024 Al in vacuum. The lubrication failure mechanism of the duplex treated 2024 Al is attributed to the generation of the cracks in the anodic oxide coating induced by normal load combined with friction force (shearing force) and the crack propagation mainly caused by friction force. It is proposed that pores of several tens of nanometers in diameter in the anodic oxide coating can postpone the propagation of the cracks.
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.
