Modeling of Formation and Removal of ZDDP Tribofilm on Rough Surfaces
Abstract Zinc dialkyldithiophosphate (ZDDP) is a widely used lubricant additive due to its high effectiveness in reducing wear by forming a tribofilm on sliding surfaces. However, the formation and removal of tribofilm are two competing processes depending on the working conditions,...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Springer US
2021
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| Online Access: | https://hdl.handle.net/1721.1/131820 |
| _version_ | 1826216482871181312 |
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| author | Chen, Zhe Gu, Chongjie Tian, Tian |
| author2 | Massachusetts Institute of Technology. Department of Mechanical Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Mechanical Engineering Chen, Zhe Gu, Chongjie Tian, Tian |
| author_sort | Chen, Zhe |
| collection | MIT |
| description | Abstract
Zinc dialkyldithiophosphate (ZDDP) is a widely used lubricant additive due to its high effectiveness in reducing wear by forming a tribofilm on sliding surfaces. However, the formation and removal of tribofilm are two competing processes depending on the working conditions, and ZDDP loses its anti-wear function when the removal process prevails. In this paper, a numerical model is built up to predict if ZDDP tribofilm can cover the sliding surfaces and protect them from wear. The input of this model includes the morphology of two sliding surfaces and parameters related to the surface materials, the working conditions and the lubricant, and the output is the surface with tribofilm and/or wear. Then, this model is used for the cylinder liner surface of an internal combustion engine, and a modeling result matching the actual case is obtained, proving that this model can be used in the design of an efficient lubrication system by searching the optimum combination of various parameters. Additionally, it is found that the resolution of the input surfaces has an impact on the modeling result, indicating that caution should be taken when comparing surfaces with different resolutions.
Graphical Abstract |
| first_indexed | 2024-09-23T16:48:06Z |
| format | Article |
| id | mit-1721.1/131820 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T16:48:06Z |
| publishDate | 2021 |
| publisher | Springer US |
| record_format | dspace |
| spelling | mit-1721.1/1318202023-01-11T19:29:25Z Modeling of Formation and Removal of ZDDP Tribofilm on Rough Surfaces Chen, Zhe Gu, Chongjie Tian, Tian Massachusetts Institute of Technology. Department of Mechanical Engineering Abstract Zinc dialkyldithiophosphate (ZDDP) is a widely used lubricant additive due to its high effectiveness in reducing wear by forming a tribofilm on sliding surfaces. However, the formation and removal of tribofilm are two competing processes depending on the working conditions, and ZDDP loses its anti-wear function when the removal process prevails. In this paper, a numerical model is built up to predict if ZDDP tribofilm can cover the sliding surfaces and protect them from wear. The input of this model includes the morphology of two sliding surfaces and parameters related to the surface materials, the working conditions and the lubricant, and the output is the surface with tribofilm and/or wear. Then, this model is used for the cylinder liner surface of an internal combustion engine, and a modeling result matching the actual case is obtained, proving that this model can be used in the design of an efficient lubrication system by searching the optimum combination of various parameters. Additionally, it is found that the resolution of the input surfaces has an impact on the modeling result, indicating that caution should be taken when comparing surfaces with different resolutions. Graphical Abstract 2021-09-20T17:30:24Z 2021-09-20T17:30:24Z 2021-01-12 2021-01-13T04:27:57Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/131820 Tribology Letters. 2021 Jan 12;69(1):13 en https://doi.org/10.1007/s11249-020-01393-8 Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. The Author(s), under exclusive licence to Springer Science+Business Media, LLC part of Springer Nature application/pdf Springer US Springer US |
| spellingShingle | Chen, Zhe Gu, Chongjie Tian, Tian Modeling of Formation and Removal of ZDDP Tribofilm on Rough Surfaces |
| title | Modeling of Formation and Removal of ZDDP Tribofilm on Rough Surfaces |
| title_full | Modeling of Formation and Removal of ZDDP Tribofilm on Rough Surfaces |
| title_fullStr | Modeling of Formation and Removal of ZDDP Tribofilm on Rough Surfaces |
| title_full_unstemmed | Modeling of Formation and Removal of ZDDP Tribofilm on Rough Surfaces |
| title_short | Modeling of Formation and Removal of ZDDP Tribofilm on Rough Surfaces |
| title_sort | modeling of formation and removal of zddp tribofilm on rough surfaces |
| url | https://hdl.handle.net/1721.1/131820 |
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