Investigations of corrosion films formed on API-X52 pipeline steel in acid sour media

被引：81

作者：

Hernandez-Espejel, A. ^{[1
]}

Dominguez-Crespo, M. A. ^{[2
]}

Cabrera-Sierra, R. ^{[3
]}

Rodriguez-Meneses, C. ^{[1
]}

Arce-Estrada, E. M. ^{[1
]}

机构：

[1] IPN ESIQIE, Dept Ingn Met, Mexico City 07738, DF, Mexico

[2] Inst Politecn Nacl, CICATA Unidad Altamira Tamaulipas, Altamira 89600, Tamps, Mexico

[3] IPN ESIQIE, Dept Ingn Quim Ind, Mexico City 07738, DF, Mexico

来源：

CORROSION SCIENCE | 2010年 / 52卷 / 07期

关键词：

API-X52; Acid sour media; Film formation; Corrosion; HYDROGEN-SULFIDE; CARBON-STEEL; IRON; IMPEDANCE; CRACKING;

D O I：

10.1016/j.corsci.2010.04.003

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Corrosion films formed by voltammetry using different switching potentials and by immersion on API-X52 pipeline steel in simulated acid sour media (NACE ID182) have been characterized using Scanning Electron Microscopy (SEM), X-ray Diffraction (XRD), Linear Polarization and Electrochemical Impedance Spectroscopy (EIS) techniques. XRD and EDS analysis showed that the films are mainly composed of sulphide compounds (mackinawite, troilite, marcasite and pyrite) as well as iron oxides, as steel damage increases. Across SEM micrographs the corrosion films formed by potentiodynamic and immersion tests are very similar, covering most of the steel. Polarization and EIS results corroborate poor behavior against corrosion. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：2258 / 2267

页数：10

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