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This paper describes the microstructural characteristics and dry sliding spray performance of Al–10 wt. % Cu alloys. In this study Al-10 wt. % Cu alloys are manufactured using the spray atomisation and deposition method. Microstructures of spray deposited alloys were examined by optical microscopy (OM), Scanning electron microscopy (SEM) and Energy dispersive X-ray spectroscopy (EDS). The size of the alloy grains was measured using optical microstructure. The average grain size of the Al–10 wt. percent of the Cu alloy was evaluated to be 5.5 μm. The study of microstructural features showed different variations in wear behaviour and coefficient of friction of alloys. Tribological characterisation was performed for the spray formed by Al-10 wt. Percent Cu alloy specimens developed with optimum parameters for the determination of sliding specific wear levels for the combination of wear parameters like sliding distance, load and velocity. The Al–10 of the Wt. Percent of Cu alloy shows better wear resistance, particularly at higher loads. The coefficient of friction implies a dependency on the applied load. The nature of these alloys is discussed in the light of both the morphology of debris particles and the morphology of damaged surfaces.

Dry sliding wear performance and morphology study of spray deposited Al-10 Wt. % Cu alloys