Corrosion of stainless steel 316 L in various aqueous salt solutions

Abstract EN

The change with time in the corrosion rate and corrosion current density on an austenitic stainless steel 316 L electrode in various aqueous salt solutions have been carried out using total immersion test and Tafel extrapolation curves.

The concentration of salts taken is 5 g / liter.

The relative behavior of these salts towards corrosion has also been studied.

The total immersion test parameters vise weight loss ; corrosion rate as well as Tafel extrapolation parameters, PH, electrical conductivity have been calculated by standard methods.

The results showed that NaCl and KCl are major contributors than MnSO4, Pb (NO3)2, KI, and KBr.

The relative increase in corrosion is high in KBr, KI, NaNO3 CaCL2, and less in Pb (NO3)2, NaHCO3, and CaCO3 test solutions.