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Crevice corrosion behavior of stainless steels and nickel-based alloy in the natural seawater – Effect of crevice geometry, temperature and seawater world location
Saline Water Conversion Corporation, Saudi Arabia.
RISE - Research Institutes of Sweden, Materials and Production, KIMAB. (Institut de la Corrosion)
Saline Water Conversion Corporation, Saudi Arabia.
RISE - Research Institutes of Sweden, Materials and Production, KIMAB. (Institut de la Corrosion)
2017 (English)In: Desalination and Water Treatment, ISSN 1944-3994, E-ISSN 1944-3986, Vol. 69, p. 202-209Article in journal (Refereed) Published
Abstract [en]

Crevice corrosion is one of the main corrosion problems for metallic alloys used in reverse osmosis (RO) desalination plants. This type of corrosion depends on many factors, that is, alloy composition and/or metallurgy, seawater location, biofilm, temperature, service conditions and crevice geometry. Corrosivity of gulf seawater was compared with the heated Brest seawater (France) for different stainless steels and nickel-based alloy. Maintaining the same experimental conditions, similarity of crevice corrosion performance in both sites relied on the tested alloys. Both crevice corrosion initiation and propagation were evaluated and compared with previous studies. Duplex S32205 and nickel-based N06625 suffered from crevice corrosion contrary to the superaustenitic S31266. However, corrosion results of superduplex S32750 and superaustenitic S31254 were reported very randomly, confirming the “borderline” behavior of these grades in some seawater applications. The impact of the results on the RO plants materials selection is outlined. 

Place, publisher, year, edition, pages
Desalination Publications , 2017. Vol. 69, p. 202-209
Keywords [en]
Biofilm, Crevice corrosion, Duplex, Gulf seawater, Nickel alloy, RO desalination, Stainless steel, alloy, corrosion, desalination, nickel, performance assessment, reverse osmosis, seawater, steel, water temperature, water treatment plant, Brest [Finistere], Bretagne, Finistere, France
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-40012DOI: 10.5004/dwt.2017.0448OAI: oai:DiVA.org:ri-40012DiVA, id: diva2:1359427
Available from: 2019-10-09 Created: 2019-10-09 Last updated: 2019-10-09Bibliographically approved

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Desalination and Water Treatment
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