The effects of some anions on metastable pitting of 316L stainless steel

Initiation and growth of a single pit on 316L stainless steel: Influence of SO42− and ClO4− anions

“…(iii) this might also be related to a difference in the adsorption properties of the anions [17,23].…”

“…To shed light on the pitting behaviour, researchers have focused their attention on the most important parameters controlling the pit evolution, namely the chloride ion concentration, the solution pH, the temperature, and the polarization potential. Less attention has, however, been paid to the role played by nonaggressive anions in the pitting corrosion mechanism [15][16][17][18][19][20][21]. Most of the works mainly rely on potentiodynamic methods to measure the pitting potential as a function of either the nature of the non-aggressive anions or their concentration.…”

“…Most of the works mainly rely on potentiodynamic methods to measure the pitting potential as a function of either the nature of the non-aggressive anions or their concentration. In successive studies of various grades of SS, Leckie and Uhlig [15], Man and Gabe [16], and Zuo et al [17] [30] investigated the effects of sulphate, thiosulphate, and chloride ions on the pitting behaviour of 304L SS at pH 3 and 5, and temperatures 55°C and 65°C. Apart from the highlighted sulphate inhibitive effect, increasing the amount of sulphate from 0 to 300 mg/L, led to larger pits (from 150 to 500 µm in diameter).…”

Effect of chloride and sulfate ions in simulated boiler water on pitting corrosion behavior of 13Cr steel

“…The metastable pitting potential Vm [13,14], which corresponds to the first current peak in the passive region, and the potentials at which the current density reached 10 μA/cm 2 V'c10, were recorded from the potentiodynamic polarization curves. V'c10 has sometimes been used as an approximation of the pitting potential [15].…”

The Influence of electrochemical surface modifications on naval steel corrosion

“…None of these methodologies has been used in a controlled preferential growth of iron oxides. The development of iron oxides under a defined crystallography and roughness is faster in alkaline solutions than in acid solutions and can be better-controlled using periodic asymmetric potential perturbations [15,16,27]. Moreover, other authors [28] used other techniques such as laser pulsating lights under constant potential (or periodic potentials) on steel showing promising results in corrosion properties, i.e.…”