Abstract
Tribological behaviors of Si3N4 ceramic sliding against titanium alloy at different normal loads under seawater lubricated conditions are investigated on a pin-on-disc tester. Generally, for Si3N4/titanium alloy pair, the friction coefficient increases from 0.43 to 0.67 with load increasing (from 10N to 30N). Correspondingly, the wear rate is in the consistent case. When Si3N4 slides against titanium alloy, the wear mechanism is dominated by mechanical wear even though under seawater lubrication. With load increasing, the shear force of solid shear and furrow drag aggravated, which should be responsible for the rising trend of friction coefficient and wear rate.
Highlights
It is well known that, the energy and environment crisis have been brought by the industrial development and increasing pollution
Volume wear rate of specimens were determined by using equation: Vm = m/ρNS, where m was the weight differences before and after sliding were measured by a microbalance with a high precision (0.1 mg), ρ was the density of specimens, N was the normal load and S was the sliding distance
It can be concluded that some tribochemical products formed during the friction process, but a continuous and significant tribofilm did not form on the wear surfaces
Summary
It is well known that, the energy and environment crisis have been brought by the industrial development and increasing pollution In this case, people have paid more and more attention to how to explore the ocean resources by utilizing the marine devices (Liu et al, 2013, 2015). Seawater hydraulic drive is a key technology in ocean exploitation and widely applied in deep-sea submergence vehicle, underwater robot, submarine oil production system, and so on. This system requires high-performance frictional pair materials (Jia et al, 2004)
Sign-in/Register to view highlights & summary 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.
