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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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Genchev, Georgi1, Autor           
Cox, Karsten1, Autor           
Tran, The Hai2, Autor           
Sarfraz, Adnan1, Autor           
Bosch, Christoph3, Autor           
Spiegel, Michael3, Autor           
Erbe, Andreas1, Autor           
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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Schlagwörter: Anodic films; EIS; Iron; Polarization; Potentiostatic; SEM
 Zusammenfassung: 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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Sprache(n): eng - English
 Datum: 2014-11-122015
 Publikationsstatus: Erschienen
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: -
 Identifikatoren: DOI: 10.1016/j.corsci.2015.06.017
 Art des Abschluß: -

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Titel: Corrosion Science
  Kurztitel : Corros. Sci.
Genre der Quelle: Zeitschrift
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Ort, Verlag, Ausgabe: Amsterdam : Pergamon
Seiten: - Band / Heft: 98 Artikelnummer: - Start- / Endseite: 725 - 736 Identifikator: ISSN: 0010-938X
CoNE: https://pure.mpg.de/cone/journals/resource/954925393343