Role of transfer film formation on the tribological properties of polymeric composite materials and spherical plain bearing at low temperatures

Cui, Wenyan; Raza, Khalid; Zhao, Zhijun; Yu, Chen; Tao, Liming; Zhao, Weihua; Chen, Wanhua; Peng, Shiguang; Xu, Qian; Ma, Liran; Hu, Yanqiang; Liao, Daxiong; Liang, Bo; Wang, Tingmei; Ma, Tianbao

doi:10.1016/j.triboint.2020.106569

Cited by 48 publications

(28 citation statements)

References 37 publications

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“…1 By integrating low-friction PTFE bers in the we orientation with high-strength and superior wear-resistant Kevlar bers in the warp orientation, hybrid PTFE/Kevlar fabric liners show excellent antifriction and wear-resistant performance, and thus they have become an ideal self-lubricating material for applications in self-lubricating spherical plain bearings. [2][3][4] The Kevlar-rich side is the back bonded to the outer ring of the self-lubricating spherical bearing, while the PTFErich side is the front as the friction surface. In this conguration, the advantages of both low-friction PTFE and highstrength Kevlar are utilized (Fig.…”

Section: Introductionmentioning

confidence: 99%

Influence of sliding orientation on tribological properties of hybrid PTFE/Kevlar fabric composites

et al. 2023

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Section: Introductionmentioning

confidence: 99%

Influence of sliding orientation on tribological properties of hybrid PTFE/Kevlar fabric composites

et al. 2023

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“…Podra et al used a pin-on-disk tribological tester to investigate the relation between wear loss of the self-lubricating material and sliding distance, and found that the contact state of friction pair has an important influence on tribological behavior of the material [13]. Cui et al discussed the tribological mechanism of the self-lubricating material, and pointed that the Nomex/PTFE fabric could form stable transfer film on the spherical plain bearing under low temperature [14]. Yu et al carried out the ball-ondisk and bearing tribological tests to study the friction and wear behavior of the PTFE-Nomex and the PTFE-Nomex/Nomex composites [15].…”

Section: Introductionmentioning

confidence: 99%

Wear mechanism of Nomex/PTFE fiber reinforced composites

Jian

Tiantian

et al. 2022

Mater. Res. Express

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This paper is aimed at the problems of abnormal tribological damage and fluctuation of tribological performance in the self-lubricating composite serving in heavy load spherical plain bearing in aerospace field. The Nomex/PTFE fiber reinforced composite was used to carry out a reciprocating block on ring tribological test, investigating the tribological performance of the material and its wear evolution. Results show that the influence of oscillating frequency on material wear is obviously higher than that of load under high load condition (more than 90 MPa or 180 kN). Under a certain load and frequency condition, friction temperature is a key factor to affect wear behavior of the material. Friction heat plays a dominant role in the process of worn out failure of the material. Too high friction temperature greatly weakens the friction and wear performance, resulting in material failure in a short time. Thermal fatigue is the main tribological damage mode of the material under the high load and high frequency condition, with local worn out occurred. This finding was also verified by SEM analysis of the worn surface and wear debris.

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“…[1][2][3][4] Currently, the materials that are most used as the self-lubricating layers of bearings are woven fabric liners, and experiment is the main method to study the wear failure behaviour of self-lubricating spherical plain bearings. [5][6][7] Researchers generally use sensors to monitor and record wear loss, temperature and friction coefficients in real time when testing bearings with selflubricating liners, so as to determine the failure state of the bearing based on changes in macro-physical signals.…”

Section: Introductionmentioning

confidence: 99%

Research on damage and failure behaviour of coated self-lubricating spherical plain bearings based on detection of friction torque and temperature rise

Liu

Guo²,

Qin

et al. 2021

Proceedings of the Institution of Mechanical Engineers, Part J:

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In this study, the wear failure behaviour of coated self-lubricating spherical plain bearings under different working conditions in the light-load and low-frequency range was studied using a swing wear life tester. The commercial GE17ES bearing was the main research object, and the wear state of the bearing was monitored in real time using torque and temperature rise signals. Furthermore, a scanning electron microscope and an energy dispersive X-ray spectroscope were adopted to analyse the wear failure mechanism of bearings. The results indicated that the friction torque and temperature rise signal changes were mainly divided into three stages, and the characteristics of similar changes could be maintained under different working conditions. Furthermore, at the end of the bearing life, the torque and temperature rise had abrupt changes almost at the same time, which indicated the occurrence of bearing failure. In general, the wear failure mechanisms of bearings included abrasive wear and adhesive wear. Moreover, fatigue wear and oxidation wear were under some conditions. The torque and temperature rise comprehensively reflected the service state of coated self-lubricating spherical plain bearings, which could be used as a physical criterion for determining bearing failure. These results had a strong prospect of engineering application, and were expected to provide a reference for determining the failure behaviour of multi-type coated self-lubricating spherical plain bearings in the future, and provided theoretical support for establishing relevant test standards.

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Role of transfer film formation on the tribological properties of polymeric composite materials and spherical plain bearing at low temperatures

Cited by 48 publications

References 37 publications

Influence of sliding orientation on tribological properties of hybrid PTFE/Kevlar fabric composites

Influence of sliding orientation on tribological properties of hybrid PTFE/Kevlar fabric composites

Wear mechanism of Nomex/PTFE fiber reinforced composites

Research on damage and failure behaviour of coated self-lubricating spherical plain bearings based on detection of friction torque and temperature rise

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