THE INFLUENCE OF FRICTION KINEMATIC PARAMETERS ON MICROHARDNESS OF SLIDINGS POLYMERS
Journal Title: Tribologia - Year 2011, Vol 239, Issue 5
Abstract
It is know that friction changes the microstructure of surface layer of the material. This modification follows as a result of interactions between contacting surfaces. There is a need to investigate the modification mechanism of the surface layer during friction. A subject of the investigation was the microhardness variation of some polymers after friction against steel. The experiment was done in surface-surface, sliding friction conditions. Vicker’s microhardness measuring method was used. The influence of some friction parameters (unite pressure p, sliding velocity vs, character of friction) on the microhardness of polymers is also described in the paper. The polymers used in the experiment were polyoksymethylene (POM), ultra high molecular weight polyethylene (PE-UHMW), polyamide (PA), and polytetrafluoroethylene (PTFE).
Authors and Affiliations
Piotr Kowalewski, Wojciech Wieleba, Anita Ptak
Keywords
Related Articles
- EP ID EP270979
- DOI -
- Views 47
- Downloads 0
A COMPARISON OF EFFECTIVENESS OF SOME BIOADDITIVES AND CLASSICAL MULTIFUNCTIONAL ADDITIVE
The aim of the study was a comparison of effectiveness of bioadditives obtained from rape-seed oil and post-refining wastes with the effectiveness of commercial multifunctional additive (zinc dialkyldithiophosphate). It...
THE IMPACT OF WATER UPON THE WEAR OF RAILWAY RAILS IN SELECTED SERVICE CONDITIONS
The article presents, in a complex way, the impact of most essential operational factors upon tribological properties such as the wear and the friction coefficient being the main causes of fatigue contact wear in the rol...
EVALUATION OF THE USEFULNESS OF SOME POST REFORMING WASTE OF RAPESEED OIL TO OBTAIN BIOADDITIVES BY BIOCHEMICAL METHODS
The opinions of the usefulness of the post-refining products of rapeseed oil and the biochemical methods of the processes to extract ecological lubricating additives were investigated. The results of conducted investigat...
THE INFLUENCE OF MODIFICATION BY DEFORMATION AND ELECTRON IRRADIATION ON THE ENHANCEMENT OF FUNCTIONAL PROPERTIES OF GUR1020 AND GUR1050 BIOPOLYMERS
GUR1020 and GUR1050 polyethylenes, intended for the production of endoprosthesis cups, were subjected to forming by uniaxial compression (up to the value of plastic deformation ef = 0.2), and radiation cross-linking (by...
A STUDY OF THE RHEOLOGICAL PROPERTIES OF GREASES THICKENED BY LITHIUM 12-HYDROXYSTEARATE IN THE LINEAR AND NON-LINEAR VISCOELASTIC REGIME
The effect of lithium thickener content on rheological properties of grease compounds in linear and non-linear viscoelastic regimes was investigated in this work. During the study, two oscillation tests were used: amplit...