2011
DOI: 10.1002/maco.201006027
|View full text |Cite
|
Sign up to set email alerts
|

The corrosion behavior of carbon steel in CO2‐saturated NaCl crevice solution containing acetic acid

Abstract: The corrosion behavior of X52 carbon steel electrodes in CO 2 -saturated NaCl crevice solution containing HAc was investigated by electrochemical measurements. Chemical environment measurements by Cl À and pH microprobes show an enrichment of Cl À ions and an increase of pH values inside the crevice. Moreover, both increments could accelerate with the decreasing dimension of the crevice mouth due to the high diffusive resistance. When the electrode in the crevice solution is coupled with the electrode in bulk … Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
3
1
1

Citation Types

0
8
0

Year Published

2016
2016
2021
2021

Publication Types

Select...
7

Relationship

0
7

Authors

Journals

citations
Cited by 19 publications
(8 citation statements)
references
References 28 publications
0
8
0
Order By: Relevance
“…In addition, the pH inside of the crevice increased, ruling out the possibility of the acidification theory, a common cause of localized corrosion on passive materials. Similarly, in an investigation of the crevice corrosion of X52 carbon steel, an increase in the corrosion rate of the electrode in the crevice solution, compared to the electrode exposed to bulk solution was reported [43]. The enhanced corrosion of the crevice electrode was attributed to the change in the potential between the small anode (electrode in the crevice solution) and a larger cathode (electrode in bulk solution), which led to the establishment of the galvanic corrosion cell.…”
Section: Discussionmentioning
confidence: 81%
See 1 more Smart Citation
“…In addition, the pH inside of the crevice increased, ruling out the possibility of the acidification theory, a common cause of localized corrosion on passive materials. Similarly, in an investigation of the crevice corrosion of X52 carbon steel, an increase in the corrosion rate of the electrode in the crevice solution, compared to the electrode exposed to bulk solution was reported [43]. The enhanced corrosion of the crevice electrode was attributed to the change in the potential between the small anode (electrode in the crevice solution) and a larger cathode (electrode in bulk solution), which led to the establishment of the galvanic corrosion cell.…”
Section: Discussionmentioning
confidence: 81%
“…The enhanced corrosion of the crevice electrode was attributed to the change in the potential between the small anode (electrode in the crevice solution) and a larger cathode (electrode in bulk solution), which led to the establishment of the galvanic corrosion cell. Likewise, no acidification inside of the crevice took place, and crevice solution pH was found to increase with time [43]. Although most of the crevice corrosion testing is done on a macroscopic scale, i.e.…”
Section: Discussionmentioning
confidence: 98%
“…Then the crevice solution becomes less aggressive than the bulk solution during the CC of carbon steel in acidic solution. [ 24,25 ] This is different from the CC of passivated metals in neutral solution. Generally, the crevice solution would become more aggressive during the CC process, which destroys the passive film and drives the metal inside the crevice into an active dissolution state.…”
Section: Discussionmentioning
confidence: 92%
“…According to Hu et al [25], CO 2 -saturated brine carbon steel crevice corrosion is related to inside crevice cathodic species consumption, such as H + and H 2 CO 3 , promoting undesirable galvanic corrosion effect. Crevice occluded surface is preferably corroded resulting severe localized corrosion.…”
Section: Stress Corrosion Cracking Tests At 20 Bar Co 2 Pressure and 60 °Cmentioning
confidence: 99%