Friction and wear performance of polyether ether ketone (PEEK) polymers in three lubrication regimes

IF 6.3 1区 工程技术 Q1 ENGINEERING, MECHANICAL
Friction Pub Date : 2024-02-02 DOI:10.1007/s40544-023-0780-4
Davide Massocchi, Nora Lecis, Marco Lattuada, Davide Scaglia, Steven Chatterton, Paolo Pennacchi
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Abstract

This experimental study investigates the friction and wear of three coatings commonly used in industrial applications, particularly in hydrodynamic bearings. The three materials under investigation were Babbitt, polyether ether ketone (PEEK) reinforced with 15% carbon fibers, and PEEK reinforced with 20% carbon fibers. The first polymer material was extruded, while the other was produced by fused deposition modelling (FDM). The materials were subjected to sliding tests in a pin-on-disc configuration, with a steel ball serving as the counter surface. The tests were conducted at room temperature, with a load of 10 N and under three different lubrication conditions: dry, grease, and oil. The linear speed was set at 0.3 m/s for the dry and semi-solid lubrication tests, while for the oil tests, the speed was set at 0.25 m/s. The greases used had consistency grades of NGLI 000 and NGLI 2. An ISO VG 68 circulation oil was used for the oil lubrication tests. Additionally, thermodynamic analyses were performed under the most severe conditions (i.e., dry) to investigate the steel-Babbitt and steel-PEEK contact.

Abstract Image

聚醚醚酮 (PEEK) 聚合物在三种润滑条件下的摩擦和磨损性能
本实验研究调查了工业应用中常用的三种涂层的摩擦和磨损情况,尤其是在流体动力轴承中。研究的三种材料分别是巴比特、用 15% 碳纤维增强的聚醚醚酮 (PEEK) 和用 20% 碳纤维增强的 PEEK。第一种聚合物材料是挤压成型的,而另一种是通过熔融沉积成型(FDM)生产的。这些材料在针盘配置下进行滑动测试,钢球作为反面。测试在室温下进行,载荷为 10 N,并在三种不同的润滑条件下进行:干润滑、油脂润滑和油润滑。干润滑和半固体润滑试验的线速度设定为 0.3 米/秒,而油润滑试验的线速度设定为 0.25 米/秒。所用润滑脂的稠度等级为 NGLI 000 和 NGLI 2,油润滑试验使用的是 ISO VG 68 循环油。此外,还在最苛刻的条件下(即干燥)进行了热力学分析,以研究钢-巴比特和钢-PEEK 的接触情况。
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来源期刊
Friction
Friction Engineering-Mechanical Engineering
CiteScore
12.90
自引率
13.20%
发文量
324
审稿时长
13 weeks
期刊介绍: Friction is a peer-reviewed international journal for the publication of theoretical and experimental research works related to the friction, lubrication and wear. Original, high quality research papers and review articles on all aspects of tribology are welcome, including, but are not limited to, a variety of topics, such as: Friction: Origin of friction, Friction theories, New phenomena of friction, Nano-friction, Ultra-low friction, Molecular friction, Ultra-high friction, Friction at high speed, Friction at high temperature or low temperature, Friction at solid/liquid interfaces, Bio-friction, Adhesion, etc. Lubrication: Superlubricity, Green lubricants, Nano-lubrication, Boundary lubrication, Thin film lubrication, Elastohydrodynamic lubrication, Mixed lubrication, New lubricants, New additives, Gas lubrication, Solid lubrication, etc. Wear: Wear materials, Wear mechanism, Wear models, Wear in severe conditions, Wear measurement, Wear monitoring, etc. Surface Engineering: Surface texturing, Molecular films, Surface coatings, Surface modification, Bionic surfaces, etc. Basic Sciences: Tribology system, Principles of tribology, Thermodynamics of tribo-systems, Micro-fluidics, Thermal stability of tribo-systems, etc. Friction is an open access journal. It is published quarterly by Tsinghua University Press and Springer, and sponsored by the State Key Laboratory of Tribology (TsinghuaUniversity) and the Tribology Institute of Chinese Mechanical Engineering Society.
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