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Determination of the critical pitting temperature of corrosion resistant alloys in H2S containing environments
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)
2018 (English)In: Corrosion Science, ISSN 0010-938X, E-ISSN 1879-0496, Vol. 142, p. 56-65Article in journal (Refereed) Published
Abstract [en]

The study aimed at developing a test method allowing to evaluate the critical pitting temperature of corrosion resistant alloys in H2S containing environments. ASTM G150 method is indeed not appropriate in sour environment due to the oxidation of H2S at high applied potential and to the decrease of H2S partial pressure as the temperature increases. The study underlines that critical pitting temperature measurement is possible in H2S-containing environments but that the determined temperature is probably not potential independent. The methodology can however be used to rank different alloys provided the selection of a test media representative from service conditions.

Place, publisher, year, edition, pages
Elsevier Ltd , 2018. Vol. 142, p. 56-65
Keywords [en]
Austenitic stainless steel, Critical pitting temperature, Duplex stainless steel, H2S, Corrosion resistance, Corrosion resistant alloys, Temperature measurement, Testing, Applied potentials, Critical pitting temperatures, Service conditions, Sour environment, Temperature increase, Test medias, Test method, Pitting
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-40482DOI: 10.1016/j.corsci.2018.07.003Scopus ID: 2-s2.0-85051002950OAI: oai:DiVA.org:ri-40482DiVA, id: diva2:1359900
Note

 Funding text 1: This work was performed in the frame of a member research consortium (MRC 10) of the ARCOR association (French association for corrosion research) leaded by the French Corrosion Institute. The authors acknowledge the member companies of this consortium for the funding of the study: -Alfa Laval -Aperam -Arcelor Mittal – Industeel -Arcelor Mittal – Bourg en Bresse -NV Bekaert SA -Böhler Edelstahl -National Oilwell Varco -Outokumpu -Sandvik Material Technology -TechnipFMC – FlexiFrance -Tenaris -Total -Vallourec

Available from: 2019-10-10 Created: 2019-10-10 Last updated: 2019-10-14Bibliographically approved

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