Influence of electrode potential on the depth of pitting corrosion in the surface structures of placed steel
The paper presents the results of the research that studied how the penetration depth of pitting corrosion in the surface structures of clad steel depends on the steel surface electrode potential. The tests were carried out on the stainless surface of the samples made from steel 09G2S/08X13, which i...
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| Format: | Article |
| Language: | English |
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OOO "CNT «NanoStroitelstvo»
2018-06-01
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| Series: | Нанотехнологии в строительстве |
| Subjects: | |
| Online Access: | http://nanobuild.ru/en_EN/journal/Nanobuild-3-2018/167-178.pdf |
| _version_ | 1818640662718840832 |
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| author | Latypova Dina Rinatovna Latypov Oleg Renatovich Bugai Dmitriy Efimovich |
| author_facet | Latypova Dina Rinatovna Latypov Oleg Renatovich Bugai Dmitriy Efimovich |
| author_sort | Latypova Dina Rinatovna |
| collection | DOAJ |
| description | The paper presents the results of the research that studied how the penetration depth of pitting corrosion in the surface structures of clad steel depends on the steel surface electrode potential. The tests were carried out on the stainless surface of the samples made from steel 09G2S/08X13, which is widely used in
production of metal structures for the oil and gas industry due to its necessary mechanical properties and corrosion resistance. The operation process of this steel runs in the technological environment with high corrosivity. The influence of pitting components of the corrosive medium (Сl– и S2O3 2– ions) on the diffusion of oxidants and the development of local processes of destruction of a passive film is shown. It is noted that the maximum influence of the electrode potential on the development of pitting corrosion occurs in the area of secondary passivation.
In this case, the depth of pitting can reach 180 μm. Further displacement of the electrode potential of the surface contributes to the phenomenon of transmissivity and leads to the appearance of significant mechanical stresses in the surface structures, causing their cracking. Investigation of surface structures will
establish mechanisms for their destruction, and timely implement the necessary anticorrosion measures. |
| first_indexed | 2024-12-16T23:14:50Z |
| format | Article |
| id | doaj.art-8ac3df397cb74773b00eeeabeed70dff |
| institution | Directory Open Access Journal |
| issn | 2075-8545 |
| language | English |
| last_indexed | 2024-12-16T23:14:50Z |
| publishDate | 2018-06-01 |
| publisher | OOO "CNT «NanoStroitelstvo» |
| record_format | Article |
| series | Нанотехнологии в строительстве |
| spelling | doaj.art-8ac3df397cb74773b00eeeabeed70dff2022-12-21T22:12:19ZengOOO "CNT «NanoStroitelstvo»Нанотехнологии в строительстве2075-85452018-06-0110316717810.15828/2075-8545-2018-10-3-167-178Influence of electrode potential on the depth of pitting corrosion in the surface structures of placed steelLatypova Dina Rinatovna0Latypov Oleg Renatovich1Bugai Dmitriy Efimovich2Lecturer of the Chair «Technology of Petroleum Devices», Ufa State Petroleum Technological UniversityDoctor of Engineering, Professor Assistant, Professor of the Chair «Technology of Petroleum Devices», Ufa State Petroleum Technological UniversityDoctor of Engineering, Professor, Professor of the Chair «Technology of Petroleum Devices», Ufa State Petroleum Technological UniversityThe paper presents the results of the research that studied how the penetration depth of pitting corrosion in the surface structures of clad steel depends on the steel surface electrode potential. The tests were carried out on the stainless surface of the samples made from steel 09G2S/08X13, which is widely used in production of metal structures for the oil and gas industry due to its necessary mechanical properties and corrosion resistance. The operation process of this steel runs in the technological environment with high corrosivity. The influence of pitting components of the corrosive medium (Сl– и S2O3 2– ions) on the diffusion of oxidants and the development of local processes of destruction of a passive film is shown. It is noted that the maximum influence of the electrode potential on the development of pitting corrosion occurs in the area of secondary passivation. In this case, the depth of pitting can reach 180 μm. Further displacement of the electrode potential of the surface contributes to the phenomenon of transmissivity and leads to the appearance of significant mechanical stresses in the surface structures, causing their cracking. Investigation of surface structures will establish mechanisms for their destruction, and timely implement the necessary anticorrosion measures.http://nanobuild.ru/en_EN/journal/Nanobuild-3-2018/167-178.pdfpitting depthpassive filmstainless steelsurface profileelectrode potentialpolarization curves |
| spellingShingle | Latypova Dina Rinatovna Latypov Oleg Renatovich Bugai Dmitriy Efimovich Influence of electrode potential on the depth of pitting corrosion in the surface structures of placed steel Нанотехнологии в строительстве pitting depth passive film stainless steel surface profile electrode potential polarization curves |
| title | Influence of electrode potential on the depth of pitting corrosion in the surface structures of placed steel |
| title_full | Influence of electrode potential on the depth of pitting corrosion in the surface structures of placed steel |
| title_fullStr | Influence of electrode potential on the depth of pitting corrosion in the surface structures of placed steel |
| title_full_unstemmed | Influence of electrode potential on the depth of pitting corrosion in the surface structures of placed steel |
| title_short | Influence of electrode potential on the depth of pitting corrosion in the surface structures of placed steel |
| title_sort | influence of electrode potential on the depth of pitting corrosion in the surface structures of placed steel |
| topic | pitting depth passive film stainless steel surface profile electrode potential polarization curves |
| url | http://nanobuild.ru/en_EN/journal/Nanobuild-3-2018/167-178.pdf |
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