Tribological compatibility analysis of conventional lubricant additives with palm trimethylolpropane ester (TMP) and tetrahedral amorphous diamond-like carbon coating (ta-C)

Zahid, Rehan and Mufti, Riaz Ahmad and Gulzar, Mubashir and Masjuki, Haji Hassan and Alabdulkarem, Abdullah and Varman, Mahendra and Kalam, Md. Abul and Zulkifli, Nurin Wahidah Mohd and Yunus, Robiah (2018) Tribological compatibility analysis of conventional lubricant additives with palm trimethylolpropane ester (TMP) and tetrahedral amorphous diamond-like carbon coating (ta-C). Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology, 232 (8). pp. 999-1013. ISSN 1350-6501

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Official URL: https://doi.org/10.1177/1350650117746803

Abstract

Modern industrial applications involve rigorous operating conditions due to which lubricant either slips out of the contact or its thin layer resides between the interacting surfaces. Deposition of diamond-like carbon coatings and using lubricants capable of physically adsorbing on the interacting surfaces can significantly improve tribological performance. In this study, tribological compatibility of glycerol mono-oleate, molybdenum dithiocarbamate and zinc dialkyldithiophosphate with palm trimethylolpropane ester and tetrahedral amorphous diamond-like carbon coating has been investigated using universal wear testing machine. For comparison, additive-free and formulated versions of polyalphaolefin were used. Moreover, spectroscopic techniques were used to investigate mechanisms responsible for a particular tribological behavior. Among base oils, trimethylolpropane ester proved to be more effective in enhancing friction performance and mitigating wear of contacts when one of the interacting surfaces was ferrous-based. Self-mated tetrahedral amorphous diamond-like carbon coating surfaces resulted in lowest values of friction and wear coefficient of balls.

Item Type: Article
Uncontrolled Keywords: Antiwear additives; bio-lubricants; DLC coating; friction modifiers; tribology
Subjects: T Technology > TJ Mechanical engineering and machinery
Divisions: Faculty of Engineering
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 28 Jan 2019 08:23
Last Modified: 28 Jan 2019 08:23
URI: http://eprints.um.edu.my/id/eprint/20212

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