Azam, A orcid.org/0000-0002-3510-1333, Dorgham, A, Khaemba, DN et al. (3 more authors) (2020) Understanding the role of surface textures in improving the performance of boundary additives, part II: Numerical simulations. Tribology International, 152. 106252. ISSN 0301-679X
Abstract
Tribological performance of mating surfaces can be improved by developing surfaces with predefined textures and it is crucial to understand their role in modifying the performance and action of boundary lubrication additives. An isotropic texture T1, intermediate texture T2 and anisotropic texture, T3, were imported into our mixed simulation framework. It was found that T3 outperforms by providing the most feasible conditions for the activation of the lubricant additive, molybdenum dithiocarbamate (MoDTC) i.e. generating higher pressure peaks (shear), making more lubricant (reactant) available and providing greater load bearing area (greater reaction probability). Hence, facilitating the formation of functional boundary films. T2 seems to generate highest pressure peaks but its performance is worst due to its inability to sustain lubricant within the contact.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2020 Elsevier Ltd. All rights reserved. This is an author produced version of an article published in Tribology International. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | Mixed lubrication; Tribofilm; Friction |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Mechanical Engineering (Leeds) > Institute of Functional Surfaces (Leeds) |
Funding Information: | Funder Grant number EPSRC (Engineering and Physical Sciences Research Council) EP/R001766/1 |
Depositing User: | Symplectic Publications |
Date Deposited: | 26 Feb 2020 17:03 |
Last Modified: | 12 Feb 2021 01:38 |
Status: | Published |
Publisher: | Elsevier |
Identification Number: | 10.1016/j.triboint.2020.106252 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:157659 |
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