The Inhibition of Sodium Oleate for Pitting Corrosion of Aluminum Alloy 2024 in 0.1 mol L^-1 NaCl Solution

The inhibition mechanism of sodium oleate (C₁₇H₃₃COONa) for pitting corrosion of aluminum alloy (AA) 2024 in 0.1 mol L^-1 NaCl solution was investigated using potentiodynamic polarization, electrochemical impedance spectroscopy (EIS), scanning electron microscopy with energy dispersive spectrometer (SEM-EDS) and X-ray photoelectron spectroscopy (XPS). C₁₇H₃₃COONa showed good inhibition effect on uniform corrosion of AA2024 in 0.1 mol L^-1 NaCl solution by promoting surface passivity of aluminum alloy. But in NaCl solution with ...