A stochastic analysis of the effect of hydrostatic pressure on the pit corrosion of Fe–20Cr alloy

Zhang, Tao; Yang, Shuting; Shao, Yawei; Meng, Guozhe; Wang, Fuhui

doi:10.1016/j.electacta.2009.02.010

Cited by 95 publications

(25 citation statements)

References 29 publications

(40 reference statements)

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“…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

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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.

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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

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“…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%

“…For example, the corrosion behavior of magnesium in marine atmospheric environment is affected by the interactions of temperature, relative humidity, CO 2 content and Cl -ions content [1]. In deep-sea corrosion, the structural steels are confronted with extremely complex environment, which consists of hydrostatic pressure, temperature, dissolved oxygen, salinity, microorganism and so on [2,3]. In the corrosion of gas and oil field, oil pipelines are always exposed to CCE with high temperature, high pressure, multi-phase flow and different contents of CO 2 and H 2 S [4].…”

Section: Introductionmentioning

confidence: 99%

“…Corrosion behavior of metal material is generally confronted with complex coupled environment (CCE) containing interactions among multivariate [1][2][3][4]. For example, the corrosion behavior of magnesium in marine atmospheric environment is affected by the interactions of temperature, relative humidity, CO 2 content and Cl -ions content [1].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

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

Liu

Zhang

et al. 2015

Acta Metall. Sin. (Engl. Lett.)

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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.

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“…The effect of hydrostatic pressure on the corrosion behaviour of alloys can be quite different and can change the properties of passive film, the rate of pit generation and pit growth, etc. [2][3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Comment on “New understanding of the effect of hydrostatic pressure on the corrosion of Ni–Cr–Mo–V high strength steel”

Pronina

2015

Corrosion Science

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A stochastic analysis of the effect of hydrostatic pressure on the pit corrosion of Fe–20Cr alloy

Cited by 95 publications

References 29 publications

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

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

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

Comment on “New understanding of the effect of hydrostatic pressure on the corrosion of Ni–Cr–Mo–V high strength steel”

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