Abstract
Abstract Wear behaviour of Al1100- coconut shell ash (CSA) composites at high temperature is investigated. The composites such as Al-5%CSA, Al-10%CSA and Al-15%CSA is prepared, using stir casting technique. The specific strength of Al-15%CSA alloy composite is enhanced by 70% over Al-1100 base alloy. Regression analysis has enabled to quantify slopes of all the materials. While the pressure exceeds the critical value, abrasion increases rapidly, resulting in adhesive wear. When, the temperature increases, the coefficient of friction initially increases up to 6 N/mm2 and then decreases due to the presence of oxides in debris, which are liberated from tribo surfaces. XRD and EDAX analyses have revealed presence of oxide phases in the debris. SEM micrographs have confirmed abrasive nature of wear.
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