Towards eliminating friction and wear in plain bearings operating without lubrication
Электронный научный архив УРФУ
Информация об архиве | Просмотр оригинала| Поле | Значение | |
| Заглавие |
Towards eliminating friction and wear in plain bearings operating without lubrication
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| Автор |
Kharanzhevskiy, E. V.
Ipatov, A. G. Makarov, A. V. Gil’mutdinov, F. Z. |
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| Описание |
Plain bearings, renowned for their versatility and simplicity, are extensively utilized in engineering design across various industries involving moving parts. Lubrication is vital to the functioning of these bearings, yet their usage is inhibited under dynamic load conditions, or at elevated or reduced temperatures due to this dependency on lubrication. This study introduces an innovative method to significantly mitigate friction and wear in plain bearings operating without lubrication. The plain bearings were constructed from steel–bronze pairs, where the steel shafts were alloyed with bismuth oxide via short-pulse laser treatment. MnO2 was utilized as a carrier to incorporate the bismuth oxide into the surface layers of the steel. Insights from transmission electron microscopy and X-ray photoelectron spectroscopy revealed a highly non-equilibrium state of matter, unattainable through conventional engineering methods. The tribological performance of the modified steel disks was assessed via a block-on-ring sliding test, demonstrating superior wear and friction performance without lubrication, as well as an ultra-low coefficient of friction. Remarkably, the modified friction pairs remained functional after 200 km of linear sliding at a load of 250 N (12.5 MPa) and a sliding speed of 9 m/s. To substantiate the technique’s viability, we tested the performance of an internal combustion engine turbocharger fitted with a modified steel shaft. The turbocharger’s performance validated the long-term effectiveness of the steel–bronze coupling operating without lubrication at 75,000 rpm. The simplicity and resilience of this technique for modifying steel–bronze pairs offer a ground-breaking and promising approach for a wide range of applications. © 2023, Springer Nature Limited.
Russian Science Foundation, RSF: 19-79-20012 This study is financially supported by Russian Science Foundation, project No. 19-79-20012. |
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| Дата |
2024-04-05T16:34:36Z
2024-04-05T16:34:36Z 2023 |
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| Тип |
Article
Journal article (info:eu-repo/semantics/article) |info:eu-repo/semantics/publishedVersion |
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| Идентификатор |
Kharanzhevskiy, E, Ipatov, A, Makarov, A & Gil’mutdinov, FZ 2023, 'Towards eliminating friction and wear in plain bearings operating without lubrication', Scientific Reports, Том. 13, № 1, 17362. https://doi.org/10.1038/s41598-023-44702-6
Kharanzhevskiy, E., Ipatov, A., Makarov, A., & Gil’mutdinov, F. Z. (2023). Towards eliminating friction and wear in plain bearings operating without lubrication. Scientific Reports, 13(1), [17362]. https://doi.org/10.1038/s41598-023-44702-6 2045-2322 Final All Open Access, Gold, Green https://www.scopus.com/inward/record.uri?eid=2-s2.0-85174173604&doi=10.1038%2fs41598-023-44702-6&partnerID=40&md5=05d8a0c2d48e94619cb5272dd6602f9c https://www.nature.com/articles/s41598-023-44702-6.pdf http://elar.urfu.ru/handle/10995/130861 10.1038/s41598-023-44702-6 85174173604 001086926800001 |
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| Язык |
en
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| Связанные ресурсы |
info:eu-repo/grantAgreement/RSF//19-79-20012
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| Права |
Open access (info:eu-repo/semantics/openAccess)
cc-by https://creativecommons.org/licenses/by/4.0/ |
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| Формат |
application/pdf
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| Издатель |
Nature Research
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| Источник |
Scientific Reports
Scientific Reports |
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