Influences of pH value, temperature, chloride ions and sulfide ions on the corrosion behaviors of 316L stainless steel in the simulated cathodic environment of proton exchange membrane fuel cell

Li, D.G.; Wang, J.D.; Chen, D.R.; Liang, Peng

doi:10.1016/j.jpowsour.2014.06.121

Cited by 75 publications

(29 citation statements)

References 36 publications

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“…Cation interstitials, cations vacancies and oxygen vacancies are the main defects of passive films on stainless steels. The Mott-Schottky approach is often used to study the semiconductor properties of the passive films on these materials 41,42 . The n-type behavior is associated with electron donors and is related with the presence of oxygen vacancies and cation interstitials whereas the p-type behavior is associated with electron acceptors and is related to the presence of cation vacancies 43 .…”

Section: Mott-schottky Analysismentioning

confidence: 99%

Electrochemical Study of the AISI 409 Ferritic Stainless Steel: Passive Film Stability and Pitting Nucleation and Growth

et al. 2017

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The aim of the present work was to study the passive film stability and pitting corrosion behavior of the AISI 409 stainless steel. The electrochemical tests were carried out in 0.1 M NaCl solution at room temperature. The general electrochemical behavior was assessed using electrochemical impedance spectroscopy (EIS) measurements whereas the semiconducting properties of the passive film were evaluated by the Mott-Schottky approach. Pitting corrosion was investigated using potentiodynamic and potentiostatic polarization tests. Surface morphology was examined using confocal laser scanning microscopy and scanning electron microscopy (SEM). Energy dispersive X-ray spectroscopy (EDS) analyses were carried out to identify the composition of precipitates that could act as preferential sites for the onset of pitting corrosion. The results showed that the passive film presents n-type semiconductive behavior. Grain boundaries played an important role as pitting initiation sites for the AISI 409 stainless steel.

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Section: Mott-schottky Analysismentioning

confidence: 99%

Electrochemical Study of the AISI 409 Ferritic Stainless Steel: Passive Film Stability and Pitting Nucleation and Growth

et al. 2017

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“…Secondly, in the intermediate frequencies region, the value of phase angles reach to the maximum value, indicating of the interfacial charge transfer reactions. Thirdly, in the low frequency region, the phase angle increases with increasing of pH value, it has been described as a Warburg-type transport impedance in a finite length layer [42]. In order to further illuminate the relationship between the passive film and EIS plots, some appropriate equivalent electron circuit (EEC) had been selected for depicting the impedance spectra obtained on the passive film of stainless steel.…”

Section: Electrochemical Impedance Spectroscopy Studiesmentioning

confidence: 99%

Influence of pH on the passivation behaviour of 904L stainless steel bipolar plates for proton exchange membrane fuel cells

Luo

Dong

et al. 2016

Journal of Alloys and Compounds

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“…Polarization resistance R p (R p = R f 1 R ct ) can characterize the corrosion resistance of stainless steel. The greater the polarization resistance, the better the corrosion resistance of the metal (Li et al, 2016). Figure 4 shows the change of the R p of 316 L SS with the pH value.…”

Section: Resultsmentioning

confidence: 99%

Passivation behavior of 316L stainless steel in artificial seawater: effects of pH and dissolved oxygen

Wang¹,

Wang

Zhang

et al. 2021

ACMM

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Purpose The purpose of this paper is to investigate the influence of the potential of hydrogen (pH) and dissolved oxygen in artificial seawater on the passivation behavior of 316L stainless steel. Design/methodology/approach The corrosion behavior was studied by using electrochemical measurements such as electrochemical impedance spectroscopy and polarization curve. The passive films were characterized with X-ray photoelectron spectroscopy. Findings The polarization resistance of the passive film decreases as the pH value drops ascribed to the formation of much more point defects. The donor carrier concentration (ND) in the passive film formed in the deaerated condition is lower than that in aerated conditions. Nevertheless, this phenomenon is the opposite when the pH value is 1 due to the significant decrease of Fe oxides/hydroxides coupled with the stable content of Cr oxides/hydroxides species. In addition, the compositional variation of the passive film also leads to the changes of its semiconductor properties from N-type to bipolar type. Originality/value This paper shows the variation of polarization resistance, corrosion potential, passive film composition and semiconductor properties with the pH value and dissolved oxygen. The results can serve as references to the further study on crevice corrosion of 316L in seawater.

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Influences of pH value, temperature, chloride ions and sulfide ions on the corrosion behaviors of 316L stainless steel in the simulated cathodic environment of proton exchange membrane fuel cell

Cited by 75 publications

References 36 publications

Electrochemical Study of the AISI 409 Ferritic Stainless Steel: Passive Film Stability and Pitting Nucleation and Growth

Electrochemical Study of the AISI 409 Ferritic Stainless Steel: Passive Film Stability and Pitting Nucleation and Growth

Influence of pH on the passivation behaviour of 904L stainless steel bipolar plates for proton exchange membrane fuel cells

Passivation behavior of 316L stainless steel in artificial seawater: effects of pH and dissolved oxygen

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