Tribological Comparison of Coatings Produced by PVD Sputtering for Application on Combustion Piston Rings

IF 2.9 3区材料科学 Q2 MATERIALS SCIENCE, COATINGS & FILMS

Coatings Pub Date : 2024-09-02 DOI:10.3390/coatings14091109

Ney Francisco Ferreira, Filipe Fernandes, Patric Daniel Neis, Jean Carlos Poletto, Talha Bin Yaqub, Albano Cavaleiro, Luis Vilhena, Amilcar Ramalho

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引用次数: 0

Abstract

This article compares the tribological performance of coatings produced by PVD sputtering. Transition metal dichalcogenide (TMD) coatings doped with carbon (WSC and MoSeC) and nitrogen (WSN and MoSeN) and a conventional diamond-like carbon (DLC) coating are compared. The tribological evaluation was oriented towards the use of coatings on piston rings. Block-on-ring tests in a condition lubricated with an additive-free polyalphaolefin (PAO 8) and at temperatures of 30, 60, and 100 °C were carried out to evaluate the coatings in boundary lubrication conditions. A load scanner test was used to evaluate dry friction and scuffing propensity. In addition to WSN, all other TMD coatings (WSC, MoSeC, and MoSeN) exhibited lower friction than DLC in dry and lubricated conditions. The study reveals that WSC, among TMD coatings, offers promising results, with significantly lower friction levels than DLC, while demonstrating reduced wear and a lower risk of metal adhesion. These findings suggest that WSC may be a viable alternative to DLC in piston rings, with potential benefits for reducing fuel consumption and increasing engine durability.

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应用于燃烧活塞环的 PVD 溅射涂层的摩擦学比较

本文比较了 PVD 溅射法生产的涂层的摩擦学性能。比较了掺杂碳（WSC 和 MoSeC）和氮（WSN 和 MoSeN）的过渡金属二卤化物（TMD）涂层和传统的类金刚石碳（DLC）涂层。摩擦学评估主要针对活塞环上涂层的使用。在不含添加剂的聚α烯烃（PAO 8）润滑条件下，在 30、60 和 100 °C 的温度下进行了活塞环阻塞试验，以评估涂层在边界润滑条件下的性能。负载扫描仪测试用于评估干摩擦和擦伤倾向。除 WSN 外，所有其他 TMD 涂层（WSC、MoSeC 和 MoSeN）在干摩擦和润滑条件下的摩擦力都低于 DLC。研究表明，在 TMD 涂层中，WSC 具有良好的效果，其摩擦水平明显低于 DLC，同时还能减少磨损和降低金属附着的风险。这些研究结果表明，WSC 可能是活塞环中 DLC 的可行替代品，具有降低油耗和提高发动机耐用性的潜在优势。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Coatings Materials Science-Surfaces, Coatings and Films

CiteScore

5.00

自引率

11.80%

发文量

1657

审稿时长

1.4 months

期刊介绍： Coatings is an international, peer-reviewed open access journal of coatings and surface engineering. It publishes reviews, research articles, communications and technical notes. Our aim is to encourage scientists to publish their experimental and theoretical results in as much detail as possible. There is no restriction on the length of the papers. Full experimental and/or methodical details must be provided. There are, in addition, unique features of this journal: * manuscripts regarding research proposals and research ideas will be particularly welcomed * electronic files or software regarding the full details of the calculation and experimental procedure - if unable to be published in a normal way - can be deposited as supplementary material