Effects of Fe2O3 and B4C Addition on the Mechanical Properties and Corrosion Resistance of Al–Mg–Si Alloy in 3.5% Brine Solution

Abstract

In this present investigation aluminum Al6061 alloy and 5 wt% of Fe2O3 in addition to 2%, 4%, 6% weight of B4C reinforced matrix composites (AMCs) is fabricated by stir casting method. Upon increasing the amount of weight percentage to the composites, the mechanical properties also increased. The AC impedance spectra and polarization studies have been utilized to investigate the resistance towards corrosion of the Fe2O3 and B4C reinforced Al6061 metal matrix composites (AMCs). Corrosion current (Icorr), Linear Polarization Resistance (LPR), corrosion potential (Ecorr), capacitance (C), charge transfer resistance (Rct) parameters were considered by the materials submerged in 3.5% of Brine solution and the resistance towards corrosion of the material is determined. Scanning Electron Microscopy (SEM) is utilized to identify the before and after corrosion of the prepared composites. The resistance towards the corrosion is significantly increased with increasing the wt% of reinforced composites.