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Impact of oxygen on corrosion and hydrogen permeation of pure iron in the presence of H2S
RISE - Research Institutes of Sweden, Materials and Production, KIMAB. (Institut de la Corrosion)
RISE - Research Institutes of Sweden, Materials and Production, KIMAB. (Institut de la Corrosion)
RISE - Research Institutes of Sweden, Materials and Production, KIMAB. (Institut de la Corrosion)
Laboratoire Interfaces et Systèmes Electrochimiques, France.
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2017 (English)In: EUROCORR 2017 - The Annual Congress of the European Federation of Corrosion, 20th International Corrosion Congress and Process Safety Congress 2017, Asociace koroznich inzenyru z.s.- AKI - Czech Association of Corrosion Engineers , 2017Conference paper, Published paper (Refereed)
Abstract [en]

This paper examines the influence of oxygen traces on corrosion and hydrogen charging of steel in H2S containing environment. It is well known that H2S is the driving force for many types of steel failures such as hydrogen induced cracking (HIC), sulfide stress cracking (SSC), and stress-oriented hydrogen induced cracking (SOHIC). Since it is a huge concern for oil and gas industries, standard test methods have been developed and published as NACE technical methods (e.g. NACE TM0284 and NACE TM0177). Though it is recognized that oxygen pollution shall be avoided during H2S cracking tests, there is still a lack of experimental data to illustrate the potential impacts of a small oxygen pollution. The aim of the present study was to check if oxygen traces can modify corrosion mechanisms and hydrogen charging of steel in H2S medium. Experiments consisted in hydrogen permeation measurements through thin pure iron membrane. They were performed at corrosion potential in order to be in realistic environmental conditions. Corrosion rate was also evaluated through weight loss measurements. Analysis of test solutions was performed in order to identify reaction products between H2S and O2

Place, publisher, year, edition, pages
Asociace koroznich inzenyru z.s.- AKI - Czech Association of Corrosion Engineers , 2017.
Keywords [en]
Corrosion rate, Hydrogen embrittlement, Iron, Oxygen, Permeation, Pollution, Sulfur compounds, Testing, Corrosion mechanisms, Environmental conditions, Hydrogen induced cracking, Hydrogen permeation measurements, Oil and Gas Industry, Standard test method, Sulfide stress cracking, Weight loss measurements, Steel corrosion
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-40019Scopus ID: -s2.0-85052296651OAI: oai:DiVA.org:ri-40019DiVA, id: diva2:1361319
Conference
Joint European Corrosion Congress 2017, EUROCORR 2017 and 20th International Corrosion Congress and Process Safety Congress 2017, 3 September 2017 through 7 September 2017
Available from: 2019-10-15 Created: 2019-10-15 Last updated: 2019-10-15Bibliographically approved

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