Passivity and Localized Corrosion

Burstein, G.T.; Sazou, Dimitra

doi:10.1016/b978-0-12-803581-8.01589-7

Cited by 8 publications

(4 citation statements)

References 167 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…There was clear evidence of localized corrosion, characterized by an abrupt increase in current density to an approximately constant potential. In the passive region of cyclic polarization curves, the nucleation of metastable pits can occur, although these can either sometimes disappear during the passivation process or proceed to the second stage corresponding to their growth followed by continued anodic reactions [42,43].…”

Section: Cyclic Polarization Tests In 1 M Nacl Solutionmentioning

confidence: 99%

Corrosion Evaluation of Duplex and Superduplex Stainless Steel Friction Stir Welds Using Potentiodynamic Measurements and Immersion Tests in Chloride Environments

Cruz

Marques

Filho

et al. 2018

Metallogr. Microstruct. Anal.

View full text Add to dashboard Cite

Austenitic-ferritic stainless steels submitted to friction stir welding show good mechanical properties, although there are concerns regarding their application in marine environments, related to their corrosion performance. Friction stir welds of UNS S32101, S32205, S32750, and S32760 steels were successfully produced at 200 rpm and 100 mm/min. The corrosion resistance of the FSW joint was evaluated by application of the ASTM A923 standard method, cyclic polarization measurements, and determination of weight loss during the FeCl 3 immersion test. The sodium hydroxide etch test was used to evaluate the presence of intermetallic phases. Cyclic polarization measurements of the S32205, S32750, and S32760 base metals showed good corrosion resistance, while poorer corrosion resistance was observed for S32101. Cyclic polarization tests at the friction stir welds indicated that for S32205 and S32750, the corrosion resistance was higher, compared to the respective base metals. The S32760 and S32101 welded joints showed lower noble potential and higher corrosion current density, compared to the base metals. NaOH etching indicated affected areas at the ferrite-ferrite grain boundaries for the S32760 FSW joint, which also showed a large loss of mass in ferric chloride solution, associated with the presence of deleterious intermetallic phases.

show abstract

Section: Cyclic Polarization Tests In 1 M Nacl Solutionmentioning

confidence: 99%

Corrosion Evaluation of Duplex and Superduplex Stainless Steel Friction Stir Welds Using Potentiodynamic Measurements and Immersion Tests in Chloride Environments

Cruz

Marques

Filho

et al. 2018

Metallogr. Microstruct. Anal.

View full text Add to dashboard Cite

show abstract

“…Passive films of Fe-based metallic glass coatingschemistry, structure and growth Passivity, one of the paramount aspect of corrosion science and engineering is the improvement of corrosion resistance for material by the development of a thin and compact protective film [303][304][305], and this is one primary reason for exceptional corrosion properties of Fe-based MG systems. From the thermodynamics perspective, passive film is stable, while kinetically the dissolution rate of the passive film is very slow, which can protect the metal or alloy from corrosion by acting as a barrier to prevent ion exchange of metal and environment.…”

Section: Solution (Immersion Mode) and Interrupted Eis Behaviour Can ...mentioning

confidence: 99%

Fe-based metallic glass coatings by thermal spraying: a focused review on corrosion properties and related degradation mechanisms

Nayak

Kumar

Laha

2022

International Materials Reviews

View full text Add to dashboard Cite

Among various materials available for alleviating the corrosion-related degradation, thermal sprayed Fe-based metallic glass coatings (MGCs) have received huge attention from the scientific community due to the exceptional combination of mechanical and corrosion properties, along with commercially attractive low material cost of this particular alloy system. Emerging reports on the thermal sprayed Fe-based MGCs outperforming conventional corrosion-resistant materials and coatings have accelerated further exploration of this domain, resulting in an immense increase of research activities over the last few decades producing fascinating results. This review takes a holistic approach encompassing an in-depth assessment of all the relevant salient work till date, including corrosion properties, corresponding degradation mechanisms, metallurgical and environmental factors with reference to passive film dynamics and/or formation of corrosion products. Moreover, various strategies for improved corrosion properties and recent research progress have been reviewed with an attempt to identify the present knowledge gaps and the future research directions.

show abstract

“…Following 27 days after the irradiation, the dose decreased to 0.2 µSvh −1 , however transmutation leads to the formation of 57 Co which has a half life of 272 days. The time taken to produce proton irradiated stainless steel is difficult, as an increase in current leads to an increase in the dose of radiation.…”

Section: Intergranular Corrosionmentioning

confidence: 99%

“…Whilst the SS would normally undergo passivation in an aqueous environment; in order to retain passivity the surface must form an invisible Cr-oxide film, (with minor concentrations of Fe close to the metal-film interface [57]). …”

Section: In-situ Electrochemical Atomic Force Microscopymentioning

confidence: 99%

Mapping of Corrosion Sites in Advanced Gas-cooled Reactor Fuel Cladding in Long Term Pond Storage

Clark¹

View full text Add to dashboard Cite

Passivity and Localized Corrosion

Cited by 8 publications

References 167 publications

Corrosion Evaluation of Duplex and Superduplex Stainless Steel Friction Stir Welds Using Potentiodynamic Measurements and Immersion Tests in Chloride Environments

Corrosion Evaluation of Duplex and Superduplex Stainless Steel Friction Stir Welds Using Potentiodynamic Measurements and Immersion Tests in Chloride Environments

Fe-based metallic glass coatings by thermal spraying: a focused review on corrosion properties and related degradation mechanisms

Mapping of Corrosion Sites in Advanced Gas-cooled Reactor Fuel Cladding in Long Term Pond Storage

Contact Info

Product

Resources

About