Effect of Sodium Tungstate on the Corrosion Behavior of Fe-Base Alloy in H2SO4 Solution
Ghalia A. Gaber, Hayam A. Aly, Lamiaa Z. Mohamed
Abstract
The corrosion behavior of Fe-base alloy in H 2 SO 4 acid at different concentrations was evaluated. The effect of sodium tungstate inhibitor on Fe-base alloy in 10 % H 2 SO 4 solutions was evaluated by using weight loss and potentiodynamic polarization methods along with scanning electron microscope and energy dispersive x-ray analysis. The corrosion rate and surface morphology of Fe-base alloy in the presence of various concentrations of sodium tungstate inhibitor compared to control in 10 % H 2 SO 4 solutions were measured. The sodium tungstate inhibitor was found to improve the protection against corrosion in comparison to the uninhibited 10 % H 2 SO 4 solution.
Topics & Concepts
Sodium tungstateTungstateAlloyCorrosionBase (topology)Materials scienceMetallurgySodiumTungstenMathematicsMathematical analysisCorrosion Behavior and InhibitionHydrogen embrittlement and corrosion behaviors in metalsConcrete Corrosion and Durability