Analysis of the gas pipeline defects formation mechanism as a result of arc discharge impact on the pipe wall

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Аннотация

The article presents an analysis of the formation possibility through defects in a gas pipeline as a result of short-term exposure to an arc discharge. The results of metallography, electron microscopy, elemental analysis, as well as the modeling results, confirming the formation possibility through defects in a 7 mm thick gas pipeline wall during an exposure to an arc discharge of less than 2 seconds are presented.

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Авторлар туралы

A. Mikhailov

M. N. Mikheev Institute of Metal Physics, Ural Branch of the Russian Academy of Sciences

Хат алмасуға жауапты Автор.
Email: mikhaylov@imp.uran.ru
Ресей, 620137 Yekaterinburg, S. Kovalevskoy St.,18

L. Mikhailov

M. N. Mikheev Institute of Metal Physics, Ural Branch of the Russian Academy of Sciences

Email: mikhaylov@imp.uran.ru
Ресей, 620137 Yekaterinburg, S. Kovalevskoy St.,18

N. Tryakina

Gazprom Transgaz Yekaterinburg LLC

Email: N.Tryakina@ekaterinburg-tr.gazprom.ru
Ресей, 620075 Yekaterinburg, Klara Zetkin St., 14

S. Trapeznikov

Gazprom Transgaz Yekaterinburg LLC

Email: N.Tryakina@ekaterinburg-tr.gazprom.ru
Ресей, 620075 Yekaterinburg, Klara Zetkin St., 14

A. Salomatin

Gazprom Transgaz Yekaterinburg LLC

Email: N.Tryakina@ekaterinburg-tr.gazprom.ru
Ресей, 620075 Yekaterinburg, Klara Zetkin St., 14

S. Kukushkin

Gazprom Transgaz Yekaterinburg LLC

Email: S.Kukushkin@ekaterinburg-tr.gazprom.ru
Ресей, 620075 Yekaterinburg, Klara Zetkin St., 14

Ya. Smorodinskii

M. N. Mikheev Institute of Metal Physics, Ural Branch of the Russian Academy of Sciences

Email: S.Kukushkin@ekaterinburg-tr.gazprom.ru
Ресей, 620137 Yekaterinburg, S. Kovalevskoy St.,18

V. Kostin

M. N. Mikheev Institute of Metal Physics, Ural Branch of the Russian Academy of Sciences

Email: S.Kukushkin@ekaterinburg-tr.gazprom.ru
Ресей, 620137 Yekaterinburg, S. Kovalevskoy St.,18

O. Vasilenko

M. N. Mikheev Institute of Metal Physics, Ural Branch of the Russian Academy of Sciences

Email: S.Kukushkin@ekaterinburg-tr.gazprom.ru
Ресей, 620137 Yekaterinburg, S. Kovalevskoy St.,18

Әдебиет тізімі

  1. Venturino P., Booman J.N., Gonzalez M.O., Otegui J.L. Pipeline failures due to lightning // Engineering Failure Analysis. 2016. P. 1—12. https://doi.org/10.1016/j.engfailanal.2016.02.021
  2. Quickel G.T., Beavers J.A. Pipeline Failure Results from Lightning Strike: Act of Mother Nature? // J. Fail. Anal. and Preven. 2011. V. 11. P. 227—232. https://doi.org/10.1007/s11668-011-9447-y
  3. Pikas J., Shoaf W. The lightning threat to pipelines and coatings // Journal of Pipeline Engineering. 2010. V. 9. Is. 3. P. 191.
  4. Bazelyan E.M., Rajzer Yu.P. Fizika molnii i molniezashchita. M.: Fizmatlit, 2001. 320 p. (In Russian).
  5. Vilkov Yu.V., Kravchenko A.S., Saitkulov M.M., Selemir V.D., Terekhin V.A., Tyutyaev A.A. Formirovanie tokovogo impul’sa molnii otricatel’noj polyarnosti s pomoshch’yu vzryvomagnitnogo generatora // Pribory i tekhnika eksperimenta. 2007. Is. 3. P. 64—71. (In Russian).

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Әрекет
1. JATS XML
Жүктеу
2. Figure 1. Damages detected during gas pipeline inspection: external surface (a); internal surface (b).

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3. Figure 2. Results of elemental analysis in the vicinity of the defect center.

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4. Figure 3. Traces of metal melting in the zone of craters of through defects (electron microscopy).

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5. Figure 4. Results of microhardness measurement for the specimen with defect.

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6. Figure 5. Configuration of the fusion zone at different moments of time, arc current 300 A, channel radius 7 mm.

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