Influence of passive film composition and sea water pressure on resistance to localised corrosion of some stainless steels in sea water

Beccaria, A. M.; Poggi, G.; Castello, Gianrico

doi:10.1179/000705995798113709

Cited by 88 publications

(31 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Some researchers devoted to laboratory experiments [9][10][11][12][13] and revealed that an increase in hydrostatic pressure influenced the properties of passive film, as a result of increased activity of chloride ions and their penetration into the passive film, the oxides and/or hydroxides of which are converted into soluble hydroxychlorides which form pit initiation sites. However, our knowledge is insufficient for better understanding the effect of hydrostatic pressure on the properties of passive film of metals, and some questions were still unclear.…”

Section: Introductionmentioning

confidence: 99%

Effect of hydrostatic pressure on the nature of passive film of pure nickel

Liu

Zhang

Shao

et al. 2011

Materials & Corrosion

View full text Add to dashboard Cite

The effect of hydrostatic pressure on the nature of passive film of nickel in 3.5% NaCl solution was investigated by means of polarization curves, electrochemical impedance spectroscopy (EIS), and Mott-Schottky measurement. The experimental results revealed that hydrostatic pressure had two opposite effects on passive film of nickel. On one hand, hydrostatic pressure improved the corrosion resistance of passive film of nickel such as the decreased acceptor density. On the other hand, the passive film became unstable and showed a higher diffusivity of acceptor density with the increasing of hydrostatic pressure, which deteriorated the corrosion resistance of passive film of nickel. The deterioration effect had greater influence on the passive film than the improvement effect, which led to the decreasing corrosion resistance of passive film with the increasing of hydrostatic pressure.

show abstract

Section: Introductionmentioning

confidence: 99%

Effect of hydrostatic pressure on the nature of passive film of pure nickel

Liu

Zhang

Shao

et al. 2011

Materials & Corrosion

View full text Add to dashboard Cite

show abstract

“…5 Comparison between the current predicted CPT of 316L SS under different NaCl concentrations and other results from literature [22,23] effect of hydrostatic pressure on pitting resistance was mostly attributed to the nature of the passive film or corrosion layers formed at different pressures [25][26][27][28]. As to 316L SS, Beccaria believed that the lower pitting resistance of 316L SS was associated with the lower concentration of molybdate compounds in the passive film when this was formed in pressurized seawater [25,26]. So, it can be deduced from former researches that high pressure may decrease CPT of 316L SS for the deterioration of pitting resistance with the increase in pressure, which is consistent with the predicted result.…”

Section: Effect Of Pressure On Cptmentioning

confidence: 96%

“…Unfortunately, there is no research about the effect of pressure on CPT. Several researches about the relationship between pitting susceptibility and hydrostatic pressure have been done for pure nickel, aluminum alloys and some steels [2,3,[25][26][27][28]. According to their researches, the Fig.…”

Section: Effect Of Pressure On Cptmentioning

confidence: 99%

Quantitative Modeling for Corrosion Behavior in Complex Coupled Environment by Response Surface Methodology

Liu

Zhang

et al. 2015

Acta Metall. Sin. (Engl. Lett.)

View full text Add to dashboard Cite

Response surface methodology (RSM) is introduced into corrosion research as a tool to assess the effects of environmental factors and their interactions on corrosion behavior and establish a model for corrosion prediction in complex coupled environment (CCE). In this study, a typical CCE, that is, the corrosion environment of pipelines in gas field is taken as an example. The effects of environmental factors such as chloride concentration, pH value and pressure as well as their interactions on critical pitting temperature (CPT) were evaluated, and a quadratic polynomial model was developed for corrosion prediction by RSM. The results showed that the model was excellent in corrosion prediction with R 2 = 0.9949. CPT was mostly affected by single environmental factor rather than interaction, and among the whole factors, chloride concentration was the most influential factor of CPT.

show abstract

“…The XPS peaks for O-1s at the range of 533.1-533.2 eV has been observed in H 2 O on the surface of some materials [19,20] …”

Section: Possible Formation Of -Si-o-d and D-o-dmentioning

confidence: 99%