Multiscale boundary frictional performance of diamond like carbon coatings

Multiscale boundary frictional performance of diamond like carbon coatings
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类金刚石碳涂层的多尺度边界摩擦性能

DOI:
10.1016/j.triboint.2018.12.039
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发表时间:
2020
影响因子:
6.2
通讯作者:
Humphrey E
Humphrey E
中科院分区:
工程技术1区
文献类型:
--
作者:
Humphrey E

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本文研究了PECVD氢化非掺杂DLC涂层及其替代超精加工齿轮钢表面副的摩擦性能。摩擦机复制了性能赛车变速箱正齿轮副的情况。在混合润滑和边界润滑条件下,DLC接触的摩擦力较小,尽管在使用光学干涉测量法测量时具有类似的表面形貌。利用原子力显微镜研究了类金刚石涂层摩擦副摩擦性能改善的机理。结果表明,所研究的DLC涂层对的纳米级表面形貌减少了在相同承载能力下形成的实际粗糙接触面积。这突出了一种有助于改善与DLC涂层的摩擦的机制。
This paper investigates the frictional performance of a PECVD hydrogenated undoped DLC coating and the alternative super-finished gear steel surface pairs. A tribometer replicates the conditions found in the conjunction of a performance racing transmission spur gear pair. In mixed and boundary regimes of lubrication the DLC contact is shown to have lower friction despite having comparable surface topography when measured using optical interferometry. To determine the mechanisms responsible for improved friction of DLC coated tribo-pairs AFM is used. It is shown that the nanoscale surface topography of the investigated DLC coated pairs reduces the real asperity contact area formed at the same load carrying capacity. This highlights a contributing mechanism for improved friction with the DLC coating.
DOI: 10.1177/1350650112472142
发表时间: 2013-01
期刊: Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology
影响因子: --
作者:
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发表时间: 2016-02-15
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DOI: 10.1177/1350650116683784
发表时间: 2017
期刊: Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology
影响因子: --
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