| الملخص: | This work aims to determine and select the suitable friction stir processing parameters for recycled aluminum alloy 6063 surface composites reinforced with titanium dioxide for better tribological performance. A medium range of processing parameters (1200–2000 rpm, 25–45 mm/min) were used to compare with a unique relatively high rotational speed of 2442 rpm and feed rate of 50 mm/min for the sample fabrication. The surface composites’ microhardness was measured and the friction and wear performance were tested using the pin-on-disc tribo-tester under starved lubrication conditions. The results show that surface composites produced at a high rotational speed of 2442 rpm and feed rate of 50 mm/min improved 45% in surface microhardness and reduced the friction coefficient and wear rate by 39% and 73%, respectively, compared to the substrate material.
|
|---|
