Tribological performance of a<scp>UHMWPE</scp>‐based multiscale composite under different lubrication and loads

Vadivel, Hari Shankar; Somberg, Julian; Kalin, Mitjan; Emami, Nazanin

doi:10.1002/ls.1603

Cited by 9 publications

(3 citation statements)

References 67 publications

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“…Under pure water lubrication, the friction force of the three PPS materials was gentle and decreased compared with that under dry friction. This suggests that adding an aqueous medium reduces the mutual friction between the friction pairs and reduces the effect of load on the friction surfaces, resulting in a relatively stable friction force [30,31]. The initial friction force of PPS is the highest, and there is a significant fluctuation after about 18 min.…”

Section: (A))mentioning

confidence: 98%

Tribological behavior of shaft-surface pairs with PPS and its composites in seawater media under cyclic loadings

Yuan,

Yao,

Guo

et al. 2024

Preprint

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Shaft-surface contact friction pairs of marine equipment are often subject to the effects of wear and corrosion under cyclic loading in the seawater media. A friction and wear test bench was established to simulate the marine ship stern shaft and bearings working in seawater media. The tribological properties of pure polyphenylene sulfide (PPS), 30% glass fiber reinforced PPS (30% GF/PPS), and 30% carbon fiber reinforced PPS (30% CF/PPS) against 316L stainless steel under different lubrication conditions were investigated. The results show that the friction force and wear loss of three PPS materials against 316L stainless steel in seawater media are the smallest. Among them, carbon fiber reinforced polyphenylene sulfide has the lowest friction and wear under seawater lubrication. The friction fluctuates in the range of 5 N, and the wear is 0.028 g. Due to the inhomogeneity of glass fiber (GF) bonding with the PPS matrix, adding GF did not significantly improve PPS materials' antifriction properties and wear resistance. The wear mechanism is mainly the severe three-body abrasive wear caused by GF falling off on the surface of the friction pair. In addition, the resistance of carbon fiber to cyclic load, the mixed lubrication effect of seawater and carbon fiber debris, and the transfer effect of polymer were also discussed. The observation results show that carbon fiber can effectively resist the impact of cyclic load on the friction surface. There are synergistic anti-friction and wear-resisting effects between carbon fiber and seawater, seawater and polymer transfer film. This study will provide a reference for selecting new shaft friction pair materials under complex working conditions of seawater.

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Section: (A))mentioning

confidence: 98%

Tribological behavior of shaft-surface pairs with PPS and its composites in seawater media under cyclic loadings

Yuan,

Yao,

Guo

et al. 2024

Preprint

View full text Add to dashboard Cite

show abstract

“…Vadivel et al evaluated the tribological properties of a UHMWPE-based multiscale composite containing GO, nanodiamond (ND), and short carbon fibers (SCF) under different loading and lubrication conditions. 10 According to the results in the seawater environment, the multiscale composites reduced friction coefficient by 77% and specific wear rate by 88%. Chen et al researched the sliding of polyimide/UHMWPE composites with tin bronze mating surfaces under seawater conditions.…”

Section: Introductionmentioning

confidence: 99%

“…The results show that adding GO reduces the wear rate of UHMWPE under different lubrication conditions, and the wear rate of UHMWPE/GO composites decreases with the increase of GO addition. Vadivel et al evaluated the tribological properties of a UHMWPE‐based multiscale composite containing GO, nanodiamond (ND), and short carbon fibers (SCF) under different loading and lubrication conditions 10 . According to the results in the seawater environment, the multiscale composites reduced friction coefficient by 77% and specific wear rate by 88%.…”

Section: Introductionmentioning

confidence: 99%

Molecular dynamics simulation of α‐ZrP/UHMWPE blend composites containing compatibilizer and its tribological behavior under seawater lubrication

Cai

Zhan

Tian

et al. 2022

J of Applied Polymer Sci

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In this work, blended composites with ultra‐high molecular weight polyethylene (UHMWPE) as matrix polymer, α‐zirconium phosphate (α‐ZrP) as filler, and sodium polyacrylate (PAANa) as compatibilizer were prepared. The interfacial interaction between PAANa as a compatibilizer and the components of α‐ZrP/UHMWPE was studied by molecular dynamics simulation. The friction and wear behavior of the GCr15 ball/composite friction pair under seawater lubrication under different loads were explored, and the friction and wear mechanism were analyzed. The results show that PAANa as a compatibilizer can effectively improve the interfacial interaction force between components of PAANa/α‐ZrP/UHMWPE composites. The composites exhibited different trends regarding the relationship between tribological properties and α‐ZrP content under various loads. The wear mechanism of composites under low load is mainly represented by extrusion deformation. With the increase of load, the wear mechanism of composites gradually changed into adhesive wear and abrasive wear (depending on the content of α‐ZrP). This work provides a theoretical basis for preparing and applying other α‐ZrP/polymer blend composites.

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Structural evolution of ultrahigh molecular weight polyethylene under sliding friction in seawater

Cheng,

Shang,

Duan

et al. 2024

J of Applied Polymer Sci

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Ultrahigh molecular weight polyethylene (UHMWPE) is suitable for tribological applications in various environments because of its advantageous characteristics, including its high‐impact strength, excellent resistance against wear and corrosion, and self‐lubricating properties. However, the tribological behavior of UHMWPE under seawater lubrication is still poorly understood. In this study, the wear mechanisms of UHMWPE in seawater environment were elucidated by examining its morphology and structural evolution during sliding friction. The tribological properties of UHMWPE were significantly affected by the sliding speed in seawater. At low sliding speeds, no long‐strip structures were observed on the worn UHMWPE surface. However, as the sliding speed was increased, prominent convex long‐strip structures appeared and became more densely distributed with time. The molecular chains in the amorphous region of UHMWPE stretched along the sliding direction under stress. In the crystalline region, molecular orientation, and lamellar slip were accompanied by molecular conformational transformations. During the initial stage of sliding friction, UHMWPE mainly exhibited adhesive wear caused by plastic deformation. Subsequently, the wear mechanism of UHMWPE gradually changed from adhesive wear to a combination of adhesive and abrasive wear, and its wear intensified over time.

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Tribological performance of aUHMWPE‐based multiscale composite under different lubrication and loads

Cited by 9 publications

References 67 publications

Tribological behavior of shaft-surface pairs with PPS and its composites in seawater media under cyclic loadings

Tribological behavior of shaft-surface pairs with PPS and its composites in seawater media under cyclic loadings

Molecular dynamics simulation of α‐ZrP/UHMWPE blend composites containing compatibilizer and its tribological behavior under seawater lubrication

Structural evolution of ultrahigh molecular weight polyethylene under sliding friction in seawater

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