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  Metallic, oxygen-containing reaction products after polarisation of iron in H2S saturated saline solutions

Genchev, G., Cox, K., Tran, T. H., Sarfraz, A., Bosch, C., Spiegel, M., et al. (2015). Metallic, oxygen-containing reaction products after polarisation of iron in H2S saturated saline solutions. Corrosion Science, 98, 725-736. doi:10.1016/j.corsci.2015.06.017.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0028-12F4-6 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0028-12FD-3
Genre: Journal Article

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 Creators:
Genchev, Georgi1, Author              
Cox, Karsten1, Author              
Tran, The Hai2, Author              
Sarfraz, Adnan1, Author              
Bosch, Christoph3, Author              
Spiegel, Michael3, Author              
Erbe, Andreas1, Author              
Affiliations:
1Interface Spectroscopy, Interface Chemistry and Surface Engineering, Max-Planck-Institut für Eisenforschung GmbH, Max Planck Society, ou_1863358              
2Corrosion, Interface Chemistry and Surface Engineering, Max-Planck-Institut für Eisenforschung GmbH, Max Planck Society, ou_2074315              
3Salzgitter Mannesmann Forschung GmbH, Duisburg, Germany, ou_persistent22              

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Free keywords: Anodic films; EIS; Iron; Polarization; Potentiostatic; SEM
 Abstract: Corrosion of Fe in H2S containing solutions is a general problem in oil production. Here, layers rich in the the tetragonal FeS modification mackinawite were grown by polarisation of iron 200mV above the corrosion potential in H2S saturated acetic saline solution. These layers have no band gap above room temperature thermal energy, hence behave metallic. The sulfide layers are duplex layers, with an inner, oxide-rich and an outer, oxide-poor region. Strain induced by differences in oxygen content may be responsible for the poor adhesion between the two layers, which leads to eventual loss of the outer layer. © 2015 Elsevier Ltd.

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Language(s): eng - English
 Dates: 2014-11-122015
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: DOI: 10.1016/j.corsci.2015.06.017
 Degree: -

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Title: Corrosion Science
  Abbreviation : Corros. Sci.
Source Genre: Journal
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Publ. Info: Amsterdam : Pergamon
Pages: - Volume / Issue: 98 Sequence Number: - Start / End Page: 725 - 736 Identifier: ISSN: 0010-938X
CoNE: /journals/resource/954925393343