Abstract
A study has been made on iron sulfide film which was formed on the sliding surface during extreme-pressure lubrication. Radioactive tracer technique with 35S was employed to study the mechanism of the formation of sulfide film and its behaviors in lubrication. Cetane solutions of elementary sulfur-35S, dibenzyl disulfide-35S2, dodecyl mercaptane-35S and stearic acid-1-14C were used for the experiments of adsorption and friction tests.It was explained by the result that the amount of iron sulfide attached to frictional surface after the removal of wear debris increased with time during the primary period, but it finally attained to a constant value. That is; a steady state was established between the formation of iron sulfide and its removal by the friction. Formation of sulfide film was remarkably affected by the chemical state of sulfur in the lubricants and by the coexistence of other surface active agents.It was also explained that the surface of iron sulfide formed by actual friction had higher activity of adsorption than that of iron oxide film.By the above results of experiment, it was suggested that the mechanism of formation of sulfide film by Davey should be developed.
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.
