In-situ Raman spectroscopy study of iron and carbon steel corrosion in mineral water

Lanarde, L.; Joiret, S.; Campaignolle, X.; Meyer, Michel

doi:10.1016/b978-044452224-5/50092-5

Cited by 3 publications

(4 citation statements)

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“…(adapted from Refait et al, 45 not balanced) According to previous studies, [23][24][25] for the Raman spectrum of GR1(Cl − ), the band at 505 cm −1 has a higher intensity than that of the band at 425 cm −1 . In this study, similar results were observed, as shown by both in situ and ex situ Raman spectra in Figs.…”

Section: Discussionmentioning

confidence: 99%

“…There has been extensive Raman spectroscopic work conducted on iron passivity, 20 corrosion of iron and steel in bulk solutions, [21][22][23][24][25][26] and pitting of stainless steel. 27,28 Johnston 21 studied corroding iron electrodes polarized at certain potentials using in situ Raman spectroscopy.…”

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confidence: 99%

“…Under the GR layer, an inner layer of magnetite with a Raman band at 665 cm −1 also developed. Lanarde et al 25 studied the corrosion behavior of iron and X70 carbon steel in mineral waters at the open-circuit potential (OCP) as well as under cathodic polarization (CP). For both iron and X70 steel, at both OCP and under CP, pitting initiated from impurities in the metals and developed around sulfides (in X70 carbon steel) and silicates (in iron).…”

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confidence: 99%

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In situ Raman Spectroscopic Study of NaCl Particle-Induced Marine Atmospheric Corrosion of Carbon Steel

Hihara

2012

J. Electrochem. Soc.

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The study of NaCl particle-induced atmospheric corrosion is facilitated by in situ Raman spectroscopic analysis through real time identification of corrosion products. Droplet formation on carbon steel by the deliquescence of pre-deposited NaCl particles that were exposed to high relative humidity (RH) (>80%), and corrosion initiation under the droplets were observed using an optical microscope. Pitting initiated within several minutes under the NaCl droplets. In situ and ex situ Raman spectra from the various rust species that formed during the corrosion process show that green rust (GR) formed close to the corrosion pit (i.e., anodic site) while lepidocrocite (γ-FeOOH) clusters precipitated outside of the GR region. A small amount of magnetite (Fe3O4) was also detected, mostly in the transitional region from GR to lepidocrocite. Upon exposure to an ambient atmosphere, GR transformed to lepidocrocite. This study confirms that the initial rust formed in NaCl particle-induced marine atmospheric corrosion of carbon steel is GR and lepidocrocite. While revealing the initiation mechanisms of NaCl particle-induced marine atmospheric corrosion of carbon steel, this study also provides insights for future studies involving wet-dry cycle exposures, which are more akin to the real atmospheric corrosion process.

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In situ Raman Spectroscopic Study of NaCl Particle-Induced Marine Atmospheric Corrosion of Carbon Steel

Hihara

2012

J. Electrochem. Soc.

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“…7͒ shows that the formed products were ␤-FeOOH and chloride-Green Rust ͑Fig. 8b and c͒, 63,64 that is, nonsoluble forms of pure Fe͑III͒ ͑FeOOH͒ or of Fe͑II͒,Fe͑III͒ hydroxyde ͑Green Rust͒ compounds.…”

Section: Raman Characterization Of the Corrosion Products-mentioning

confidence: 99%

Development of a Coupled SECM-EQCM Technique for the Study of Pitting Corrosion on Iron

Gabrielli

Joiret

Keddam

et al. 2006

J. Electrochem. Soc.

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The local breakdown of the iron passive layer and the resulting pitting corrosion were studied with a coupled scanning electrochemical microscopy/electrochemical quartz microbalance technique ͑SECM/EQCM͒. The initiation and the propagation of a single pit on iron deposited on the quartz gold electrode were controlled through the local production of chloride anion thanks to the silver chloride reduction at the tip of the scanning electrochemical microscope. The frequency response of the quartz was correlated to the pit evolution with respect to time. After the breakdown of the passive layer, the frequency changes were then directly linked to the generation of Fe͑II͒ during the pit growth. It was also shown that in 0.1 M NaOH solution, the local amount of Cl − necessary to initiate the pit was about 0.15 M. In addition to the presence of the oxidized Fe 3 O 4 passive layer and corrosion products like Fe 2 O 3 5H 2 O, ␤-FeOOH, and Green Rust, Raman analysis evidenced the formation of Fe͑OH͒ 2 inside the pit. Moreover, the influence of the pit size was also studied by varying the amount of chloride ions generated close to the iron substrate.

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In situ Raman spectroscopy study of corrosion products on the surface of carbon steel in solution containing Cl− and SO42-

Zhang

Xiao

Dong

et al. 2011

Engineering Failure Analysis

131

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In-situ Raman spectroscopy study of iron and carbon steel corrosion in mineral water

Cited by 3 publications

References 4 publications

In situ Raman Spectroscopic Study of NaCl Particle-Induced Marine Atmospheric Corrosion of Carbon Steel

In situ Raman Spectroscopic Study of NaCl Particle-Induced Marine Atmospheric Corrosion of Carbon Steel

Development of a Coupled SECM-EQCM Technique for the Study of Pitting Corrosion on Iron

In situ Raman spectroscopy study of corrosion products on the surface of carbon steel in solution containing Cl− and SO42-

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