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Corrosion of pure iron and hydrogen permeation in the presence of H2S with O2 contamination
RISE - Research Institutes of Sweden, Material och produktion, KIMAB. (Institut de la Corrosion)
RISE - Research Institutes of Sweden, Material och produktion, KIMAB. (Institut de la Corrosion)
RISE - Research Institutes of Sweden, Material och produktion, KIMAB. (Institut de la Corrosion)
IFP Energies Nouvelles, France.
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2018 (Engelska)Ingår i: NACE - International Corrosion Conference SeriesVolume 2018-April, 2018Corrosion Conference and Expo 2018; Phoenix; United States; 15 April 2018 through 19 April 2018, National Assoc. of Corrosion Engineers International , 2018Konferensbidrag, Publicerat paper (Refereegranskat)
Abstract [en]

This paper examines the influence of traces of oxygen on corrosion and hydrogen charging of steel in an H2S containing environment. It is well known that H2S promotes hydrogen entry into steels, that may result in 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 should 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 is to check if oxygen traces can modify the mechanisms of corrosion and hydrogen charging of steel in H2S containing medium. Experiments consisted of hydrogen permeation measurements through a thin pure iron membrane. They were performed at free potential circuit in order to ensure more realistic environmental conditions. The corrosion rate was also evaluated and test solutions analyzed. 

Ort, förlag, år, upplaga, sidor
National Assoc. of Corrosion Engineers International , 2018.
Nyckelord [en]
H2S, HIC, Hydrogen embrittlement, Hydrogen permeation, O2, SSC, Corrosion rate, Iron, Oxygen, Pollution, Steel corrosion, Sulfur compounds, Testing, Environmental conditions, Hydrogen induced cracking, Hydrogen permeation measurements, Oil and Gas Industry, Potential impacts, Standard test method, Sulfide stress cracking, Permeation
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URN: urn:nbn:se:ri:diva-40007Scopus ID: s2.0-85053517313ISBN: 9781510864405 (tryckt)OAI: oai:DiVA.org:ri-40007DiVA, id: diva2:1361331
Konferens
NACE - International Corrosion Conference Series Volume 2018-April, 2018 Corrosion Conference and Expo 2018; Phoenix; United States; 15 April 2018 through 19 April 2018
Tillgänglig från: 2019-10-15 Skapad: 2019-10-15 Senast uppdaterad: 2019-10-15Bibliografiskt granskad

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