Effect of O2 contamination on carbon steel pseudo-passive scales in CO2 aqueous solutions

被引：7

作者：

Basilico, Edoardo ^{[1
,2
]}

Marcelin, Sabrina ^{[2
]}

Mingant, Remy ^{[1
]}

Kittel, Jean ^{[1
]}

Fregonese, Marion ^{[2
]}

Barker, Richard ^{[3
]}

Owen, Joshua ^{[3
]}

Neville, Anne ^{[3
]}

Ropital, Francois ^{[1
,2
]}

机构：

[1] IFP Energies Nouvelles, BP 3, F-69360 Solaize, France

[2] Univ Claude Bernard Lyon 1, Univ Lyon, UMR5510, MATEIS,INSA Lyon,CNRS, F-69621 Villeurbanne, France

[3] Univ Leeds, Sch Mech Engn, Inst Funct Surfaces, Leeds LS2 9JT, W Yorkshire, England

来源：

CORROSION SCIENCE | 2022年 / 205卷

关键词：

Oxygen contamination; Pseudo-passivation; CO2; corrosion; Corrosion product layer; Siderite; Pitting; MILD-STEEL; CORROSION BEHAVIOR; DIOXIDE; IMPURITIES; EVOLUTION; MODEL; FILM; OIL;

D O I：

10.1016/j.corsci.2022.110388

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Waters containing CO2 can lead to the formation of a "pseudo passive " protective corrosion product layer on carbon steel, however an oxygen contamination can significantly alter the corrosion behavior. The carbon steel API 5 L X65 specimens were tested in a CO2 saturated solution with small concentrations of O-2 (90-270 ppb). Electrochemical techniques, Raman spectroscopy and SEM were used for determining the corrosion product layer properties. Oxygen contamination induces pits that result in a significant increase and instability of the open circuit potential. Removing the oxygen contamination, stops pits propagation and the carbon steel surface regains its "pseudo-passive " behavior.

引用

页数：11

共 31 条

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