Wear behaviour of Al/(Al2O3p+SiCp) hybrid composites

Effect of Copper and Silicon Carbide Content on the Corrosion Resistance of Al-Mg Alloys in Acidic and Alkaline Solutions

“…This problem in case of Al-based metal matrix composite is due to the formation of stable tenacious oxide film, resulting in poor wettability with the ceramic particle. One of the common practices to improve wettability of an Al melt is through addition of small amount of reactive metals like magnesium and titanium prior to the incorporation of ceramic particle [1,3]. However, in the present work, 4…”

“…Aluminum ingots and copper granules melted together at 850 °C. The amount of SiC powder pre-oxidized at 900°C for about 30 minutes to form a layer of SiO 2 on their surface in order to improve their wettability with molten aluminum were incorporated into the melt [1]. Magnesium was added to the melt in the final stage prior to pouring.…”

“…The reinforcement in AMCs could be in the form of continuous/discontinuous fibers, whisker or particulates [1], in volume fractions ranging from a few percent to 60%. Studying corrosion resistance of Al-based materials is important especially for automotive and aircraft applications where the parts are prone to corrosive media like salt water solutions, acidic and alkaline media.…”

“…Studying corrosion resistance of Al-based materials is important especially for automotive and aircraft applications where the parts are prone to corrosive media like salt water solutions, acidic and alkaline media. Aluminum based composites are usually reinforced by Al 2 O 3 , SiC, and C. The major advantages of AMCs compared to unreinforced materials are as follows: greater strength, improved stiffness, reduced density, good corrosion resistance, improved high temperature properties, controlled thermal expansion coefficient, thermal/heat management, improved wear resistance and improved damping capabilities [1][2][3][4][5][6]. Nowadays, the increased demand for light weight components, primarily driven by the need to reduce energy consumption in a variety of societal and structural components, has led to an increase in the use of aluminum.…”

“…The major limitation in many cases in fabricating metal matrix composites by liquid phase route resides upon the incompatibility of the reinforcement and the matrix [1][2][3]. This problem in case of Al-based metal matrix composite is due to the formation of stable tenacious oxide film, resulting in poor wettability with the ceramic particle.…”