Effect of Sign-Alternating Cyclic Polarisation and Hydrogen Uptake on the Localised Corrosion of X70 Pipeline Steel in Near-Neutral Solutions
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...
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| Format: | Article |
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MDPI AG
2020-02-01
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| Series: | Metals |
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| Online Access: | https://www.mdpi.com/2075-4701/10/2/245 |
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| author | Alevtina Rybkina Natalia Gladkikh Andrey Marshakov Maxim Petrunin Andrei Nazarov |
| author_facet | Alevtina Rybkina Natalia Gladkikh Andrey Marshakov Maxim Petrunin Andrei Nazarov |
| author_sort | Alevtina Rybkina |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-12-20T14:46:15Z |
| format | Article |
| id | doaj.art-f611308d28d24b1ab9449ede4c09ab09 |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-12-20T14:46:15Z |
| publishDate | 2020-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj.art-f611308d28d24b1ab9449ede4c09ab092022-12-21T19:37:06ZengMDPI AGMetals2075-47012020-02-0110224510.3390/met10020245met10020245Effect of Sign-Alternating Cyclic Polarisation and Hydrogen Uptake on the Localised Corrosion of X70 Pipeline Steel in Near-Neutral SolutionsAlevtina Rybkina0Natalia Gladkikh1Andrey Marshakov2Maxim Petrunin3Andrei Nazarov4Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, 119071 Moscow, RussiaFrumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, 119071 Moscow, RussiaFrumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, 119071 Moscow, RussiaFrumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, 119071 Moscow, RussiaFrench Corrosion Institute, 29200 Brest, FranceThe 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.https://www.mdpi.com/2075-4701/10/2/245pipeline steelsign-alternating polarisationpitting corrosionsoil electrolytehydrogen uptake |
| spellingShingle | Alevtina Rybkina Natalia Gladkikh Andrey Marshakov Maxim Petrunin Andrei Nazarov Effect of Sign-Alternating Cyclic Polarisation and Hydrogen Uptake on the Localised Corrosion of X70 Pipeline Steel in Near-Neutral Solutions Metals pipeline steel sign-alternating polarisation pitting corrosion soil electrolyte hydrogen uptake |
| title | Effect of Sign-Alternating Cyclic Polarisation and Hydrogen Uptake on the Localised Corrosion of X70 Pipeline Steel in Near-Neutral Solutions |
| title_full | Effect of Sign-Alternating Cyclic Polarisation and Hydrogen Uptake on the Localised Corrosion of X70 Pipeline Steel in Near-Neutral Solutions |
| title_fullStr | Effect of Sign-Alternating Cyclic Polarisation and Hydrogen Uptake on the Localised Corrosion of X70 Pipeline Steel in Near-Neutral Solutions |
| title_full_unstemmed | Effect of Sign-Alternating Cyclic Polarisation and Hydrogen Uptake on the Localised Corrosion of X70 Pipeline Steel in Near-Neutral Solutions |
| title_short | Effect of Sign-Alternating Cyclic Polarisation and Hydrogen Uptake on the Localised Corrosion of X70 Pipeline Steel in Near-Neutral Solutions |
| title_sort | effect of sign alternating cyclic polarisation and hydrogen uptake on the localised corrosion of x70 pipeline steel in near neutral solutions |
| topic | pipeline steel sign-alternating polarisation pitting corrosion soil electrolyte hydrogen uptake |
| url | https://www.mdpi.com/2075-4701/10/2/245 |
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