Wear Behavior of Polyaryletherketones Under Multi-directional Sliding and Fretting Conditions

Abstract

The polyaryletherketone (PAEK) family of thermoplastics is increasingly used in engineering applications that require outstanding tribological properties. Considerable attention has thus been paid to their wear behavior in a number of environments. However, little focus has been given to PAEK response to fretting conditions. Fretting wear results from the repeated slip of mutually loaded contacts. In this study, a custom built multi-axis tribometer has been shown to replicate fretting of PAEK in a pin-on-flat configuration. The experimentation and analysis has provided new insights into this phenomenon.

Modification effects of short carbon fibers on mechanical properties and fretting wear behavior of UHMWPE composites

“…These polymeric composites are frequently subjected to vibration under contact conditions, where fretting can be a possible failure mechanism of some important components . Especially, in some applications, these polymeric composites are fixed with other components such as bearings, flexible couplings, and grip components, and are prone to experience vibration with small amplitude, which unavoidably resulting in fretting wear . As we all know, fretting may cause catastrophic consequences in industries, which should not be neglected.…”

Combined effect of fibers and PTFE nanoparticles on improving the fretting wear resistance of UHMWPE-matrix composites

“…[1][2][3] It is a destructive phenomenon that can accelerate crack initiation in vibrating components, leading to premature catastrophic failures. [4] This phenomenon can be observed in many engineering applications, especially at the mechanical assemblies such as bolts, rivets, turbine blade fixings, liners, flexible couplings, and bearings.…”

“…Fretting occurs when component‐contacting interfaces move relative to one another with small amplitude . It is a destructive phenomenon that can accelerate crack initiation in vibrating components, leading to premature catastrophic failures .…”

“…Investigations of fretting in metals have persisted for decades, but very limited work is available about fretting in polymers. And interestingly, many early studies of polymer fretting focus on polymer coatings because these often serve as palliative against the fretting of metals . Besides, application of fretting theories to polymers has been challenging and little fundamental knowledge exists .…”

“…And interestingly, many early studies of polymer fretting focus on polymer coatings because these often serve as palliative against the fretting of metals . Besides, application of fretting theories to polymers has been challenging and little fundamental knowledge exists . As a typical multifunctional engineering thermoplastic with excellent wear resistance, superior biocompatibility, and better chemical stability, ultra‐high molecular weight polyethylene (UHMWPE) has been widely used in many fields such as fretting environments.…”