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A new crevice assembly adapted for tube geometries to test crevice corrosion in seawater
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)
RISE - Research Institutes of Sweden, Materials and Production, KIMAB. (Institut de la Corrosion)
2018 (English)In: NACE - International Corrosion Conference Series Volume 2018-April, 2018Corrosion Conference and Expo 2018; Phoenix; United State s;, National Assoc. of Corrosion Engineers International , 2018Conference paper, Published paper (Refereed)
Abstract [en]

Crevice corrosion resistance is one of the main criteria for the selection of a given stainless steel grade for seawater applications. Crevice corrosion resistance can be evaluated using different techniques that are described in standards and in the literature. However, the proposed assemblies are often restricted to plate geometry specimens. Some crevice assemblies for tube geometry have been proposed and used during the last ten years, but they showed a large dispersion of the results due to the difficulty to control crevice geometries on curved surfaces. From this background, an optimized crevice assembly was proposed to allow a better control of the reproducibility of crevice corrosion tests on stainless steel tubes. Finite element modelling and laboratory testing have shown that the new proposed design provides a better control of gasket pressure and consequently a better reproducibility than previous existing assemblies. The proposed assembly can be adapted and used for fit-for-purpose testing (e. g. evaluation of different gasket materials, different gasket pressures, etc.). 

Place, publisher, year, edition, pages
National Assoc. of Corrosion Engineers International , 2018.
Keywords [en]
Crevice corrosion, Marine corrosion, Stainless steel, Tubes, Corrosion resistance, Gaskets, Geometry, Seawater corrosion, Steel corrosion, Tubing, Tubular steel structures, Crevice geometry, Finite element modelling, Gasket materials, Laboratory testing, Reproducibilities, Stainless steel grades, Stainless steel tube
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-40489Scopus ID: 2-s2.0-85053539746ISBN: 9781510864405 (print)OAI: oai:DiVA.org:ri-40489DiVA, id: diva2:1359978
Conference
NACE - International Corrosion Conference Series Volume 2018-April, 2018 Corrosion Conference and Expo 2018; Phoenix; United States; 15 April 2018 through 19 April 2018
Available from: 2019-10-10 Created: 2019-10-10 Last updated: 2019-10-10Bibliographically approved

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  • apa
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