¹Department of Chemistry, T John Institute of Technology, Bangalore India

²Department of Chemistry, St Josephs college, Bangalore  India

³Department of Chemistry, Auden Technology and management Academy, Bangalore India

⁴Department of Chemistry, Don Bosco Institute of Technology ,Bangalore India

 The present investigation aims to evaluate the corrosion control properties of metal matrix composites in comparison with matrix alloy using different concentration of Sodium chloride solutions and potentiodynamic polarization techniques. Matrix alloy used in AL6061 and the reinforcement used was quartz particulates of size 50-80 microns. Composites are prepared by liquid melt metallurgy technique using vortex method. Quartz particulates reinforced varying from two to six percent by weight in steps of two percent under dry conditions. Specimens are prepared according to ASTM standards. Both composites and corresponding base alloys were subjected to identical test conditions to understand the influence of the reinforcement on alloy corrosion behaviour and effective corrosion control. Composites became less prone to corrosion and pit formation than the matrix alloy, which may be due to chemically inert quartz particles present in the metal matrix composites. On the other hand the test also reveals that corrosion resistance of both alloy and composites increase with increase in normality of the sodium chloride solution, which may be due to increasing concentration of hydrogen ions in the solution. Corrosion of alloys can be effectively controlled by converting them in to composites by the addition of inert materials like silica particulates. If any automobile parts like bearing are made using these composites corrosion control properties can be tailored so that they can be used effectively in wide area of application.