Cathodic protection of main pipelines from stress corrosion cracking
https://doi.org/10.31675/1607-1859-2021-23-1-140-149
Abstract
The paper analyzes the degradation process of the strength properties of ferritic-pearlitic pipe steels subjected to the influence of cathode hydrogen and the operating pressure in the pipeline. It is shown that the growth stress corrosion cracking deep into the pipe wall occurs along the Chernov-Lüders band, in the direction of the maximum tangential stresses acting at an angle of 30-60 degrees relative to the tensile stresses.
About the Authors
V. I. Khizhnyakov
Tomsk State University of Architecture and Building
Russian Federation
Russian Federation
Valentin I. Khizhnyakov, DSc, Professor
2, Solyanaya Sq., 634003, Tomsk
A. V. Negodin
Tomsk State University of Architecture and Building
Russian Federation
Russian Federation
Aleksander V. Negodin, Senior Lecturer
2, Solyanaya Sq., 634003, Tomsk
V. A. Shelkov
Tomsk State University of Architecture and Building
Russian Federation
Russian Federation
Valeriy A. Shelkov, Student
2, Solyanaya Sq., 634003, Tomsk
A. N. Toz
Tomsk State University of Architecture and Building
Russian Federation
Russian Federation
Anton N. Toz, Student
2, Solyanaya Sq., 634003, Tomsk
References
1. Voronin V.N., Mamaev N.I., Ahtimirov N.D., Burdinskij E.V. Analiz stress-korrozionnogo sostoyaniya magistral'nyh gazoprovodov OOO “Severgazprom” na osnovanii rezul'tatov vnutritrubnoj defektoskopii i obsledovaniya v shurfah, puti resheniya problemy KRN [Stresscorrosion analysis of Severgazprom main pipelines based on in-line flaw detection and inspection in pits and corrosion cracking problem solution]. In: Materialy otraslevogo soveshchaniya Osobennosti proyavleniya KRN na magistral'nyh gazoprovodah OAO “Gazprom” (Proc. Industry Day ‘Corrosion Cracking of Gasprom Main Pipelines’). Moscow, 2002. 74 p. (rus)
2. Konakova M.A., Yakovlev A.Ya., Mamaev N.I. Zakonomernosti i osobennosti KRN na trubah MG OOO “Severgazprom” na baze analiza avarijnyh otkazov s 1981 po 2002 g. [Corrosion cracking analysis of Severgazprom pipelines based on failures in 1981–2002]. In: Materialy otraslevogo soveshchaniya Osobennosti proyavleniya KRN na magistral'nyh gazoprovodah OAO “Gazprom”. Metody diagnostiki, sposoby remonta defektov i puti predotvrashcheniya KRN (Proc. Industry Day ‘Defect Diagnostic and Repair and Corrosion Cracking Prevention’) 2002. Pp. 140–158. (rus)
3. Bogdanov R.I., Ryahovskih I.V., Esiev T.S., Zavgorodnev A.V., Ignatenko V.E. Osobennosti proyavleniya korrozionnogo rastreskivaniya pod napryazheniem magistral'nyh gazoprovodov na territorii Rossijskoj Federacii [Stress corrosion cracking of main gas pipelines in the Russian Federation]. Vesti gazovoj nauki. 2016. No. 3 (27). P. 16. (rus)
4. Hizhnyakov V.I. Korrozionnoe rastreskivanie truboprovodov pod napryazheniem pri transporte nefti i gaza [Corrosion cracking of pipelines during oil-gas transportation]. Moscow: KARPTEK, 2013. 105 p. (rus)
5. Farber V.M., Selivanova O.V., Hotinov V.A, Poluhina O.N. Deformacionnoe starenie v stalyah [Strain aging in steels]. Ekaterinburg, 2018. (rus)
6. Hirth J.P., Lothe J. Teoriya dislokatsii [Theory of dislocations]. E.M. Nadgornyi, Yu. A. Osip'yan, eds, Moscow: Atomizdat. 1972. 505 p. (transl. from Engl.)
7. Syromyatnikova A.S. Degradaciya fiziko-mekhanicheskogo sostoyaniya trub magistral'nogo gazoprovoda pri dlitel'noj ekspluatacii v usloviyah kriolitozony [Degradation of physicalmechanical state main pipelines during long-term operation in cryolithic conditions]. Fizicheskaya mezomekhanika. 2014. V. 17. No. 2. Pp. 85–91. (rus)
8. Mazur I.I., Ivantsov О.M. Safety of pipeline systems. Moscow: Elima, 2004. 62 p.
Review
For citations:
Khizhnyakov V.I., Negodin A.V., Shelkov V.A., Toz A.N. Cathodic protection of main pipelines from stress corrosion cracking. Vestnik Tomskogo gosudarstvennogo arkhitekturno-stroitel'nogo universiteta. JOURNAL of Construction and Architecture. 2021;23(1):140-149. (In Russ.) https://doi.org/10.31675/1607-1859-2021-23-1-140-149
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