The potential of sodium molybdate on the corrosion of aluminium alloy AA6063 type was examined with the
view to study the electrochemical and surface degradation for metal-inhibitor interface using gravimetric and
electrochemical corrosion techniques in simulated s~awater environment. The microstructures of as-corroded samples were
also assessed for their surface morphology.The results show thatcorrosion rate decreased with an increase in the inhibitor
concentration and exposure time. Equally, the inhibition efticiency increased with inhibitor addition with maximum
efficiency obtained at 5g/v sodium molybdate addition. The adsorption of the molecules of the extract on the aluminium
alloy surface obeyed the Langmuir adsorption isotherm. The potentiodynamic polarization results showed that sodium
molybdate acted as mixed-type i•1hibitor