Critère électrochimique de résistance à la corrosion

Crolet, Jean-Louis; Séraphin, L.; Tricot, R.

doi:10.1051/mattech/197866110355

Cited by 4 publications

(4 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The value was obtained for the alloy immersed under different acidic conditions with HCl and H 2 SO 4 . When the material was active, the maximum current density was determined as the maximum current density on the activity peak, consistent with the methodology proposed by Crolet et al 27 For the passive state, the current density of the passive plateau was considered. When acidified with HCl, the maximum current density for similar pH was higher than that when acidified with H 2 SO 4 .…”

Section: Resultsmentioning

confidence: 99%

Potential of a Thin-Film Cell for assessing the Sensitivity of Nickel-Base Alloys to Crevice Corrosion

Klinklin,

Marcelin,

Ter-Ovanessian

et al. 2023

J. Electrochem. Soc.

View full text Add to dashboard Cite

Nickel-base alloy 825 is prone to crevice corrosion in seawater. A modified and updated thin-layer cell was used to mimic crevice corrosion, and a new approach to monitor the evolution of the material behavior was developed. The corrosion potential, polarization resistance, and electrolyte resistance were demonstrated to be good indicators to follow the different stages of the crevice-corrosion process. The results were discussed in regard to the cathodic process kinetic. The different tested conditions justify the interest of the methodology developed for this set-up.

show abstract

Section: Resultsmentioning

confidence: 99%

Potential of a Thin-Film Cell for assessing the Sensitivity of Nickel-Base Alloys to Crevice Corrosion

Klinklin,

Marcelin,

Ter-Ovanessian

et al. 2023

J. Electrochem. Soc.

View full text Add to dashboard Cite

show abstract

“…The plate samples (100 Â 50 mm 2 ) were passivated in nitric acid (65%) at room temperature, then mechanically polished with a grade 1000 silicon carbide paper, air dried and finally immersed into the corrosive fluid. Only the two faces of the samples were polished, leaving the edge passivated to reduce effects [4]. The stainless steel surface was polished with a relatively coarse paper to induce roughness.…”

Section: Stainless Steelmentioning

confidence: 99%

Aspects of the effects of temperature and electrolyte composition on pitting corrosion of stainless steel in dairy fluids

Perrin

Girard

Pagetti

et al. 2001

Werkstoffe und Korrosion

View full text Add to dashboard Cite

“…The adsorption of H 2 S produced from CaS on the surface is supposed to deteriorate the passive film 25 and increase the dissolution rate of the matrix, which accelerates the accumulation of H ion and chloride inside the artificial crevice and, finally, increases the corrosion rate. …”

Section: Crevice Corrosion Resistance In Acidic Solutionmentioning

confidence: 99%

Effect of Microalloy Elements on Corrosion Resistance of High-Chromium-Containing Ferritic Stainless Steels in Chloride Solutions

Kim

Lee

2001

Corrosion

View full text Add to dashboard Cite

The effects of inclusions on corrosion resistance of high-Crcontaining ferritic steels were studied using electrochemical tests (anodic polarization and electrochemical noise [EN]) and a ferric chloride (FeCl 3 ) test in chloride solution. For this purpose, the inclusion type and size in the matrix was controlled by the selective addition of alloying elements, their contents, and pickling treatment. Large inclusions such as titanium nitride (TiN), though chemically stable, caused surface cracks at the inclusion/matrix interface during mechanical treatments and decreased pitting corrosion resistance. Soluble inclusions located at the interface were preferentially attacked to form crevices even if the inclusions were as small as a submicron. Meanwhile, submicron inclusions such as Nb, C, or N did not affect pitting corrosion resistance. Unlike the chemical compositions and shape of inclusion, the surface area covered by inclusions did not affect pitting corrosion resistance. Hence, the main factor affecting corrosion resistance was the presence of a crevice, whether it was formed by dissolution or mechanical damage, and not the number of inclusions. EN testing revealed that the experimental alloys deoxidized by Si were more resistant to initial pitting corrosion resistance than those deoxidized by Al, though many steel manufacturers deoxidize stainless steels by Al. The discrepancy was attributed to the difference of the chemical stability and the feasability of crack formation depending on inclusion.

show abstract

Critère électrochimique de résistance à la corrosion

Cited by 4 publications

References 0 publications

Potential of a Thin-Film Cell for assessing the Sensitivity of Nickel-Base Alloys to Crevice Corrosion

Potential of a Thin-Film Cell for assessing the Sensitivity of Nickel-Base Alloys to Crevice Corrosion

Aspects of the effects of temperature and electrolyte composition on pitting corrosion of stainless steel in dairy fluids

Effect of Microalloy Elements on Corrosion Resistance of High-Chromium-Containing Ferritic Stainless Steels in Chloride Solutions

Contact Info

Product

Resources

About