Nucleation and growth of anodic films on stainless steel alloys I. Influence of minor alloying elements and applied potential on passive film growth

Brookes, H. C.; Bayles, John W.; Graham, F. J.

doi:10.1007/bf01033598

Cited by 32 publications

(9 citation statements)

References 24 publications

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“…Hackerman [7] proposed a model for the growth of oxide from initially adsorbed oxygen. In stainless steel, the presence of chromium is responsible for passivation [8], nickel stabilizes austenitic structure [9] and Molybdenum prevents depassivation by pitting [10].…”

Section: Introductionmentioning

confidence: 99%

XPS Analysis of Passive Film on Stainless Steel

Natarajan¹,

Palaniswamy²,

Natesan³

et al. 2009

TOCORRJ

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Potentiodynamic, impedance measurements were carried out on 304 stainless steel in 0.5N, 1.0, 2.0 and 5.0 N H 2 SO 4 solutions. X-ray photoelectron spectroscopic [XPS] The passive film found to contain chromium oxide inner layer and the dissolution of iron through it caused the formation of oxides of iron namely -Fe 2 O 3 and -FeOOH. Higher oxides of manganese and nickel are also due to dissolution through the film. Sulphates are reduced to sulphur chemically by the released protons from anodic polarization.

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Section: Introductionmentioning

confidence: 99%

XPS Analysis of Passive Film on Stainless Steel

Natarajan¹,

Palaniswamy²,

Natesan³

et al. 2009

TOCORRJ

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“…The development of surface analysis techniques has enhanced knowledge of the passive layer structure and the role played by molybdenum ( Ref 22,23). Passive films formed in neutral and acid media consist of a rich chromium oxide inner layer (Cr203) and an outer layer containing hydrated chromium, iron, and molybdenum ( Ref 24).…”

Section: Passive Film Characteristicsmentioning

confidence: 99%

Influence of alloying elements on the corrosion performance of alloy 33 and alloy 24 in seawater

Latha

Rajendran

Rajeswari

1997

J. of Materi Eng and Perform

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The nitrogen-bearing alloys (alloy 33 and alloy 24) and stainless steel type 316L were used in this investigation in order to study the effect of alloying elements on electrochemical behavior and on the nature of passive film in seawater. Scanning electron microscopic studies were carried out to identify the pit morphology of the alloys. Surface analysis of the alloys by x-ray photoelectron spectroscopy after passivation showed that nitrogen and chromium are enriched at the surface of the passive film.IKeywords microscopy, x-ray photoelectron spectroscopy 1 alloy 24, alloy 33, passive film, scanning electron

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“…It is known that the addition of vanadium to an Fe18Cr alloy increases the rate of repassivation of surface defects and therefore enhances the resistance of the passive scale in acidic Cl − environments. 5 This also decreases the dissolution of the alloy thus improving the corrosion resistance of the alloy. It is also known that vanadium additions increase the pitting corrosion resistance of ferritic 18% Cr stainless steels.…”

Section: Introductionmentioning

confidence: 98%

“…7 Vanadium addition is also observed to increase the rate of the repassivation of a surface defect in Fe18Cr. 5 Energy dispersive x-ray spectroscopy measurements show that the Cr content in Cr oxide layer is higher in 4.5 wt. % Cr, 0.20 wt.…”

Section: Introductionmentioning

confidence: 99%

Tuning the surface chemistry of Fe-Cr by V doping

et al. 2009

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The reversal of the magnitudes of the bulk and surface chemical-potential differences induces the outburst of Cr on the otherwise pure Fe surface of Fe-Cr alloys. This threshold value for the Cr content is about 10 at. %. It is found that vanadium addition to Fe-Cr shifts the Cr threshold to a substantially lower value suggesting V having a positive effect on the corrosion resistance of low Cr steels. The obtained shift in the Cr threshold is shown to be connected to the change in volume of the alloy.

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Nucleation and growth of anodic films on stainless steel alloys I. Influence of minor alloying elements and applied potential on passive film growth

Cited by 32 publications

References 24 publications

XPS Analysis of Passive Film on Stainless Steel

XPS Analysis of Passive Film on Stainless Steel

Influence of alloying elements on the corrosion performance of alloy 33 and alloy 24 in seawater

Tuning the surface chemistry of Fe-Cr by V doping

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