Tribology review of blended bulk polymers and their coatings for high-load bearing applications

Nunez, Emerson Escobar; Gheisari, Reza; Polycarpou, Andreas A.

doi:10.1016/j.triboint.2018.08.002

Cited by 89 publications

(46 citation statements)

References 126 publications

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“…However, this film was very thin and unstable, probably due to its poor adhesion to the ceramic ball. This effect was also discussed by Nunez et al, [61] where different levels of adhesive interaction of the polymer film to the steel and ceramic counterparts were found and even the impossibility of polymer film transfer to the ceramic surface was established. Hence, the COF reaches very low values even below 0.05 in the sliding contact of steel with PEEK composites containing PTFE.…”

Section: Effect Of Ptfe/peek Coatings On the Tribological Propertimentioning

confidence: 58%

Effect of Low-Friction Composite Polymer Coatings Fabricated by Electrophoretic Deposition and Heat Treatment on the Ti-6Al-4V Titanium Alloy’s Tribological Properties

Fiołek

Zimowski

Kopia

et al. 2020

Metall Mater Trans A

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In this work, polytetrafluoroethylene/polyetheretherketone (PTFE/PEEK 708) coatings were fabricated by electrophoretic deposition (EPD) and heat treatment to improve the tribological properties of the Ti-6Al-4V alloy. A stable suspension containing chitosan polyelectrolyte allowed the co-deposition of both polymer types. The effect of soaking temperature and cooling rate on the coating microstructure was determined. The homogeneous coatings were obtained by heating at 450°C and cooling with a furnace or in water. The crystalline PTFE separate particles and their agglomerates were homogeneously distributed in a PEEK matrix. Interestingly, the PEEK structure was amorphous regardless of the cooling rate after heating. This new phenomenon is associated with the fluorination process. The coatings exhibited moderate scratch resistance but significantly decreased the coefficient of friction (COF) and enhanced the wear resistance of the alloy during the dry friction process in sliding contact with an Al 2 O 3 ball. The COF of the PTFE/PEEK 708 coating equaled 0.10 at room temperature (RT) and was lower than that of the alloy and pure PEEK 708 coating investigated in the same conditions, which reached 0.70 and 0.27, respectively. The wear rate of the coated alloy at RT was lower than that of the uncoated and PEEK 708 coated alloy, around 1900 and 10 times, respectively. Both the COF and wear increased slightly during friction at 150°C. The coating was not effective in improving the alloy's tribological properties during friction at 260°C.

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Section: Effect Of Ptfe/peek Coatings On the Tribological Propertimentioning

confidence: 58%

Effect of Low-Friction Composite Polymer Coatings Fabricated by Electrophoretic Deposition and Heat Treatment on the Ti-6Al-4V Titanium Alloy’s Tribological Properties

Fiołek

Zimowski

Kopia

et al. 2020

Metall Mater Trans A

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“…New technologies allow for a better dispersion of the constituents, making the resulting materials more predictable [58][59][60].…”

Section: Tendency In Using Polymeric Materials and Conclusionmentioning

confidence: 99%

Tribological Behavior of Polymers and Polymer Composites

Deleanu¹,

Botan²,

Georgescu³

2021

Tribology in Materials and Manufacturing - Wear, Friction and Lubrication

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This chapter means to explain the tribological behavior of polymer-based materials, to support a beneficial introducing of those materials in actual applications based on test campaigns and their results. Generally, the designers have to take into consideration a set of tribological parameters, not only one, including friction coefficient, wear, temperature in contact, contact durability related to application. Adding materials in polymers could improve especially wear with more than one order of magnitude, but when harder fillers are added (as glass beads, short fibers, minerals) the friction coefficient is slightly increased as compared to neat polymer. In this chapter, there are presented several research studies done by the authors, from which there is point out the importance of composite formulation based on experimental results. For instance, for PBT sliding on steel there was obtained a friction coefficient between 0.15 and 0.3, but for the composite with PBT + micro glass beads, the value of friction coefficient was greater. Adding a polymer playing the role of a solid lubricant (PTFE) in these composites and also only in PBT, decreased the friction coefficient till a maximum value of 0.25. The wear parameter, linear wear rate of the block (from block-on-ring tester) was reduced from 4.5 μm/(N⋅km) till bellow 1 μm/(N⋅km) for a dry sliding regime of 2.5…5 N, for all tested sliding velocities, for the composite PBT + 10% glass beads +10% PTFE, the most promising composite from this family of materials. This study emphasis the importance of polymer composite recipe and the test parameters. Also there are presented failure mechanisms within the tribolayer of polymer-based materials and their counterparts.

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“…Combination of epoxy-based composite with natural fiber such as jute fiber can increase the tensile strength but reduce the compressive strength at the same time. Other than polymers composites, the jute fiber also gives an outcome with the positive effect on the mechanical behaviour of composites based on polyester [35,36]. The combination of jute fiber and polyester composites impact on increase about 121% of tensile strength compared to the pure.…”

Section: Materials Properties For Tribologymentioning

confidence: 99%

Materials for Tribology’s Application: A Mini Analysis

Sazali

Ngadiman

2020

ARFMTS

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The exploitation of advanced material in a miscellaneous area can improve the performance and value of material engineering. The tribological applications are analyses based on the natures of materials utilized, for example, polymers, and polymer composite also ceramics, and ceramic composites. Specifically, the study on the behaviour of polymer-composite, surface interaction and polymer are due to the development of the composite nowadays become widely attention and noticeable worldwide in various industry. In conjunction, the friction effect on those materials is not directly relatable with the material characteristic but based on their tribology behaviour. The friction is not directly influencing the material characteristic but has affected the tribology behaviour of the material.

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Tribology review of blended bulk polymers and their coatings for high-load bearing applications

Cited by 89 publications

References 126 publications

Effect of Low-Friction Composite Polymer Coatings Fabricated by Electrophoretic Deposition and Heat Treatment on the Ti-6Al-4V Titanium Alloy’s Tribological Properties

Effect of Low-Friction Composite Polymer Coatings Fabricated by Electrophoretic Deposition and Heat Treatment on the Ti-6Al-4V Titanium Alloy’s Tribological Properties

Tribological Behavior of Polymers and Polymer Composites

Materials for Tribology’s Application: A Mini Analysis

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