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2016
DOI: 10.5935/0100-4042.20160116
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THE FORMATION OF PROTECTIVE IRON CARBONATE FILMS AND THE CONTROL OF CO2CORROSION IN TURBULENT FLOW

Abstract: TURBULENT FLOW. The formation of a protective layer of iron carbonate (FeCO 3 ) can reduce the rates of corrosion and prolong the useful life of carbon steel. However, turbulent flow conditions in this layer can easily be damaged and thus compromise the protection of the steel. In this work, will be presented a methodology based on the chemical aspects of the mechanism of formation of iron carbonate layer in a Thin Channel Flow Cell (TCFC). Electrochemical techniques were used to measure the corrosion rate and… Show more

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Cited by 2 publications
(2 citation statements)
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“…The presence of Ca 2+ in CaCO 3 -saturated solution did not affect the overall corrosion behaviour of the 1Cr steel (Figure 3). This was still characterised by the three stages (active corrosion, nucleation and growth of carbonates, and pseudo-passivation) defined by Farelas et al [43], and described extensively in other research work [8,16,44]. Calcium is reported to delay the kinetics of the formation of the protective corrosion layer, due to its higher solubility [45].…”
Section: Discussionmentioning
confidence: 99%
“…The presence of Ca 2+ in CaCO 3 -saturated solution did not affect the overall corrosion behaviour of the 1Cr steel (Figure 3). This was still characterised by the three stages (active corrosion, nucleation and growth of carbonates, and pseudo-passivation) defined by Farelas et al [43], and described extensively in other research work [8,16,44]. Calcium is reported to delay the kinetics of the formation of the protective corrosion layer, due to its higher solubility [45].…”
Section: Discussionmentioning
confidence: 99%
“…Um dos problemas enfrentados pela indústria petrolífera é a ocorrência de (FERREIRA et al, 2016;ANSARIZADEH et al, 2015;BROWN, et al, 2016;TALEBIAN et al, 2014).…”
Section: Corrosão Pelo Co2unclassified