The metastable pitting behaviors of mild steel in bicarbonate and nitrite solutions containing Cl−

Tang, Yuming; Zuo, Yu; Zhao, Xuhui

doi:10.1016/j.corsci.2007.12.003

Cited by 41 publications

(29 citation statements)

References 26 publications

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“…3D). This oscillatory behavior has been attributed to metastable pitting [29][30][31], during which local nucleation, growth and repassivation of pits occurs. The process is observed in the negative sweep because it requires the previous formation of a passive film.…”

Section: Electrochemical Measurements and Gravimetric Testsmentioning

confidence: 96%

Inhibition by CO of the corrosion of Fe, Ni, and their alloys in concentrated HCl solutions

Cabello

Funkhouser

Cassidy

et al. 2011

Journal of Electroanalytical Chemistry

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a b s t r a c tInhibition by CO of the corrosion of Fe, Ni, and three alloys, containing either Fe and large amounts of Ni (Incoloy 825) or large amounts of Fe (Uniloy-420 and N80 steels) in solutions containing between 7.5% and 28% HCl was studied using potentiodynamic polarization curves, gravimetric tests, and FTIRS. In all cases, but Uniloy-420 in 28% HCl, a clear inhibition of corrosion in the presence of CO in the solution was shown by the gravimetric tests and from cyclic voltammetry, the inhibition being higher in the case of Ni and Ni-containing alloys. CO chemisorbed on Fe and/or Ni atoms present on the alloy surface was identified as the species responsible for corrosion inhibition. The inhibition of corrosion is higher in the cases of Ni and Incoloy 825.

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Section: Electrochemical Measurements and Gravimetric Testsmentioning

confidence: 96%

Inhibition by CO of the corrosion of Fe, Ni, and their alloys in concentrated HCl solutions

Cabello

Funkhouser

Cassidy

et al. 2011

Journal of Electroanalytical Chemistry

View full text Add to dashboard Cite

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“…Metastable pitting behavior, which indicates the nucleation, growth and subsequent repassivation of pits provides useful information on the film breakdown of passive films [33][34][35][36][37][38][39][40][41][42][43][44][45][46][47][48][49]. In particular, Burstein et al have extensively studied on the metastable pitting of various alloys by measuring the metastable pitting current transients [38][39][40][41][42][43][44][45][46][47][48][49], thus we examined the effects of Ni on the metastable pitting behavior or the film breakdown tendency of Fe-20Cr-xNi (x=0-20 wt%) alloys by using ENM in order to obtain the current transient curves of each alloy.…”

Section: Effects Of Ni On the Film Breakdown Of Fe-20cr-xni (X=0-20 Wmentioning

confidence: 99%

A Study on the localized corrosion and repassivation kinetics of Fe-20Cr- x Ni ( x = 0–20 wt%) stainless steels via electrochemical analysis

Ahn

Eom

et al. 2015

Corrosion Science

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“…It is understood that metastable pits can occur in a wide potential range below the pitting potential [6], and can be characterized by the random occurrence of potential and current spikes which may vary in magnitude and duration [7,8]. The current transient pattern corresponding to metastable pits typically presents a slow rise followed by a sharp recovery (for stainless steel) or a quick rise followed by a slow recovery (for carbon steel and aluminium alloys) [9].…”

Section: Introductionmentioning

confidence: 99%

EIS and adjunct electrical modeling for material selection by evaluating two mild steels for use in super-alkaline mineral processing

et al. 2011

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The production of metal concentrates during mineral processing of ferrous and non-ferrous metals involves a variety of highly corrosive chemicals which deteriorate common mild steel as the material of choice in the construction of such lines, through rapid propagation of localized pitting in susceptible parts, often in sensitive areas. This requires unscheduled maintenance and plant shut down. In order to test the corrosion resistance of different available materials as replacement materials, polarization and electrochemical impedance spectroscopy (EIS) tests were carried out. The EIS numerical outputs were then transformed into an equivalent electric circuit using Z-View software, and the predictive behavior was contrasted with actual performance after long-term immersion, depicted through SEM, EDS, XRD and weight change observations. Also, results of pits and cracks, obtained with climax software-enhanced polarization resistance, and reduced capacitance added to much diminished current densities, verified the acceptable performance of CK 45 compared with high priced stainless steel substitutes with comparable operational life. Therefore, CK 45 can be a suitable alternative in steel constructions which are exposed to super-alkaline and corrosive environments.

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The metastable pitting behaviors of mild steel in bicarbonate and nitrite solutions containing Cl−

Cited by 41 publications

References 26 publications

Inhibition by CO of the corrosion of Fe, Ni, and their alloys in concentrated HCl solutions

Inhibition by CO of the corrosion of Fe, Ni, and their alloys in concentrated HCl solutions

A Study on the localized corrosion and repassivation kinetics of Fe-20Cr- x Ni ( x = 0–20 wt%) stainless steels via electrochemical analysis

EIS and adjunct electrical modeling for material selection by evaluating two mild steels for use in super-alkaline mineral processing

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