An experimental study of tribological behaviours of aluminium- and copper-based metal matrix composites for bearing applications Online publication date: Mon, 02-Sep-2019
by Vipin Kumar Sharma; Ramesh Chandra Singh; Rajiv Chaudhary
International Journal of Materials Engineering Innovation (IJMATEI), Vol. 10, No. 3, 2019
Abstract: To improve the tribological properties for journal bearing materials, composites have been developed in this work. Copper-aluminium (Cu-Al), copper-phosphorous (Cu-P), aluminium-flyash (Al-F), and copper-lead (Cu-Pb) composites were produced with stir casting method. Pin on disc experiments were performed in a starved lubrication condition for the evaluation of wear and coefficient of friction between the composite pins and mild steel disc. Scanning electron microscopy (SEM) images were obtained for the worn composite samples to study the wear behaviour. In this experimental study, copper-phosphorous exhibits better tribological properties as compared to the conventional copper-lead. however, the aluminium-flyash composite resulted in the lowest coefficient of friction and highest wear among all considered composite materials.
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