Abstract
In this paper we tried to present a qualitative correlation, based on extensive experimental determinations between the value and the evolution of the friction coefficient, wear, and contact temperature, in the case of linear dry contact, for thermoplastic material reinforced with short glass fibers (SGF) and various steel surfaces. The aim was to highlight the evolution of the wear process depending on the evolution of the friction coefficient. As a result, it was possible to graphically illustrate the evolution of the friction coefficient and the change of the wear process, emphasizing the abrasive, adhesive and corrosive wear. The evolution of the plastic material transfer function of the contact temperature, namely of the power lost by friction (product between the contact pressure and sliding speed, p and v) was aimed and it was highlighted. It has been demonstrated that in the case of a 30% SGF content it can reach and even exceed contact temperatures very close to the flow limit of the plastic material. We tried, believing successfully, the graphic illustration of the evolution of the steel surface wear and of the contact temperature, depending on the friction coefficient. The influence of the normal load and sliding speed was evaluated in detail, but also the influence of the metallic surface roughness on the friction coefficient was discussed.
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Dorin RUS. He received his MS degree in mechanical engineering in 1982 from Faculty of Technological Equipment for Constructions Romania. In 1983 he joined the Mechanical Department of Institute of Civil Engineering Bucharest. His current position is lecturer in machine parts. His research areas cover tribology, micro /nanostructures, and nanofilms.
Liliana-Laura BADITA. She received her Bachelor degree in biophysics in 2004 from University of Bucharest, Romania. In 2007 she received Master degree in Biodynamics from University of Bucharest. She has recently (end of 2012) obtained her PhD degree in engineering sciences at Romanian Academy of Sciences. She joined Micro/Nanomechatronic Technologies Laboratory at National Institute of Research and Development in Mechatronics and Measurement Technique, in Bucharest from 2007. Her current position is researcher and coordinator of MEMS/NEMS Laboratory. Her research areas cover biophysics, medical physics, micro/nanostructures, nanofilms, tribology and atomic force microscopy.
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Rus, D., Capitanu, L. & Badita, LL. A qualitative correlation between friction coefficient and steel surface wear in linear dry sliding contact to polymers with SGF. Friction 2, 47–57 (2014). https://doi.org/10.1007/s40544-014-0038-2
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DOI: https://doi.org/10.1007/s40544-014-0038-2