Svenningsen, G., Palencsár, A. and Kvarekval, J. (2009) Investigation of Iron Sulfide Surface Layer Growth in Aqueous H2S/CO2 Environments. Corrosion Conference and Expo (CORROSION 2009): A Hit in the Heart of the South, Atlanta, 22-26 March 2009, Paper 09359.

has been cited by the following article:

• TITLE: Corrosion Behavior of API 5L X52 Steel under High Concentrations of H2S/CO2 Gases

  AUTHORS: Mónica Jazmín Hernández Gayosso, Gerardo Zavala Olivares, Saúl Bautista Fragoso, Gabriel Ernesto Blanco del Valle, Daniel Mauricio Godínez Oidor, Víctor Ángel Rodríguez Gómez

  KEYWORDS: H2S Corrosion, Cracking, Corrosion Inhibition

  JOURNAL NAME: Materials Sciences and Applications, Vol.7 No.10, October 20, 2016

  ABSTRACT: In the present work, the susceptibility of API 5L X52 steel to corrosion processes was evaluated in the presence of high contents of hydrogen sulfide and carbon dioxide. Gravimetric tests and surface analyses were carried out to establish both the corrosion rate and damage type exhibited by the metal. The obtained results indicate that the hydrogen sulfide is the most active gas in the corrosion processes that took place, quite above carbon dioxide. The main observed corrosion products were iron sulfides and the typical damage associated with hydrogen sulfide presence was Sulfide Stress Cracking (SSC). The surface damage evidences the presence of cracks with considerable magnitude and metal loss as consequences of the corrosion processes. Likewise, the presence of oxygen in the system modifies the displayed corrosion type, where corrosion products such as iron oxides and reduction in the number and extent of cracks are observed. On the other hand, the addition of a film-forming corrosion inhibitor based on modified imidazolines eliminates completely the development of cracks, although under certain test conditions, it can favor localized pitting corrosion.