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Effect of sign‐alternating cyclic polarisation and hydrogen uptake on the localised corrosion of X70 pipeline steel in near‐neutral solutions
Russian Academy of Sciences, Russia.
Russian Academy of Sciences, Russia.
Russian Academy of Sciences, Russia.
Russian Academy of Sciences, Russia.
Vise andre og tillknytning
2020 (engelsk)Inngår i: Metals, ISSN 2075-4701, Vol. 10, nr 2, artikkel-id 245Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

The effect of sign‐alternating cycling polarisation (SACP) on the localised corrosion of X70pipeline steel in solutions of various compositions was studied. Localised corrosion of steel at anodic potentials was accelerated with an increase in the duration of the cathodic half‐cycle, in the presence of a promoter of hydrogen absorption in aqueous electrolyte, and with an increase in the concentrations of chloride and bicarbonate ions. It was pointed out that the corrosion rate is determined by the amount of hydrogen absorbed by the steel. A quantitative indicator to determine the intensity of localised corrosion under SACP was suggested. © 2020 by the authors. 

sted, utgiver, år, opplag, sider
MDPI AG , 2020. Vol. 10, nr 2, artikkel-id 245
Emneord [en]
Hydrogen uptake, Pipeline steel, Pitting corrosion, Sign‐alternating polarisation, Soil electrolyte
HSV kategori
Identifikatorer
URN: urn:nbn:se:ri:diva-50115DOI: 10.3390/met10020245Scopus ID: 2-s2.0-85079549926OAI: oai:DiVA.org:ri-50115DiVA, id: diva2:1497175
Merknad

Funding details: Ministry of Education and Science of the Russian Federation, Minobrnauka; Funding text 1: Funding: This research was funded by the Ministry of Science and High Education of the Russian Federation, No. AAAA‐A20‐120012390029‐7

Tilgjengelig fra: 2020-11-04 Laget: 2020-11-04 Sist oppdatert: 2021-06-09bibliografisk kontrollert

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