Preparation of flame sprayed poly(tetrafluoroethylene-co-hexafluoropropylene) coatings and their tribological properties under water lubrication

Feng, Zhou; Xu, Haiyan; Yan, Fengyuan

doi:10.1016/j.apsusc.2008.07.110

Cited by 9 publications

(1 citation statement)

References 13 publications

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“…Hence owing to these comprehensive characteristics, it is substituting PTFE in many tribological applications [115,116]. Zhizhong Feng et al [117] investigated the tribological properties of FEP coating through conventional flame spraying technique. Initially, the substrate was sand-blasted and cleaned in an ultrasonic bath of ethanol.…”

Section: Fep (Fluorinated Ethylene Propylene)mentioning

confidence: 99%

A review: advancements in fluoro-based polymers for aggrandizing anti-galling and wear resistant characteristics

2019

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Galling is the surface phenomenon which involves adhesion of local contact points and creation of protrusions on the juxtaposition of surfaces owing to high friction, inappropriate tribological loading, starved lubrication and high contact pressure (~ 1000 kPa). All these factors result in severe plastic deformation varying from 8000 to 10,000 µε (ε-strain) and diffusion of materials into one another, which consequently results in fatigue wear, surface roughness, tribocorrosion and seizing up of critical parts. The aim of the review is to analyze and summarizes the issue of galling, concurrently it also deals with the novel and economical mitigation method i.e. use of fluorine based coatings e.g. PTFE, owing to their lowest friction coefficient from 0.02 to 0.2 among other solids, high stiffness, high thermal stability and non-adherent characteristics that augments the mechanical and tribological properties and concurrently protect against hostile environments that eventually upsurges the life of components.

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Section: Fep (Fluorinated Ethylene Propylene)mentioning

confidence: 99%