Abstract
Bearing corrosion is one of the important causes of engine failures in shipborne aircraft, and solving the problem of bearing corrosion failure is urgent. This article uses chromatography, image analysis, and finite element simulation to study the high-temperature deterioration behavior of Mobil Jet Oil Ⅱ aviation lubricating oil, as well as the corrosion mechanism of M50 bearing steel in oil–water mixture under a wide temperature range. The results indicate that deteriorated lubricating oil without salt water doping does not have corrosiveness. Mobil Jet Oil Ⅱ aviation lubricating oil at 200 °C has obvious deterioration within 48 h, where consumption and decomposition of additives cause acidity changing from pH 8.1 to pH 2 and surface tension decreasing by 11.3 %. The crack corrosion caused by acid and the galvanic corrosion of secondary cementite accelerate the pitting corrosion process. The corrosion enhancement effect of temperature on oil–water mixture shows a parabolic trend. Corrosion can be effectively reduced by lowering the temperature of lubricating oil and quickly removing moisture.
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.
