THE TRIBOLOGICAL CHARACTERISTICS OF Al-Si/GRAPHITE COMPOSITES
Journal Title: Tribologia - Year 2017, Vol 271, Issue 1
Abstract
The paper presents the results of tribological research on AlSi12CuNiMg/5.7 wt.% Gr aluminium composite material (containing graphite particles in the amount of 5.7% wt.%) and on its matrix. This composite is used as high-tech construction material in the automotive industry, particularly for pistons, cylinder liners, and slide bearings. The tribological properties of these materials can be significantly changed as a result of the introduction of graphite particles. Therefore, wear tests have been carried out using the ball-on-disc tribometer. Microstructure and wear resistance of the matrix and composite alloy have been subjected to comparative analysis. It was demonstrated that the composite reinforced with graphite is characterized by a lower friction coefficient and lower wear in comparison to the matrix.
Authors and Affiliations
Mariusz WALCZAK, Maciej ZWIERZCHOWSKI, Jarosław BIENIAŚ, Jacek CABAN
Keywords
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