Sress-corrosion cracking under cathodic protection of low alloy steel joints with high frequency weld and arc weld

Array

Authors

  • L.I. Nyrkova E.O. Paton Electric Welding Institute of the National Academy of Sciences of Ukraine, Kyiv, Ukraine
  • L.V. Goncharenko E.O. Paton Electric Welding Institute of the National Academy of Sciences of Ukraine, Kyiv, Ukraine
  • S.O. Osadchuk E.O. Paton Electric Welding Institute of the National Academy of Sciences of Ukraine, Kyiv, Ukraine
  • S. M. Prokopchuk E.O. Paton Electric Welding Institute of the National Academy of Sciences of Ukraine, Kyiv, Ukraine
  • A.V. Klymenko E.O. Paton Electric Welding Institute of the National Academy of Sciences of Ukraine, Kyiv, Ukraine
  • V.A. Kostin E.O. Paton Electric Welding Institute of the National Academy of Sciences of Ukraine, Kyiv, Ukraine

DOI:

https://doi.org/10.15330/pcss.23.3.559-568

Keywords:

oil pipeline, low alloy steel, welded joints, slow strain rate method, voltammetry, metallography, fractography, stress-corrosion cracking

Abstract

According to the results of complex electrochemical, corrosion-mechanical and fractographic studies, the existence of three potential regions, in which the stress-corrosion cracking (SCC) of 17G1S (17G1S-U) steel in the NS4 model soil electrolyte occurs by different mechanisms was established and experimentally confirmed: at potentials positively than -0.8 V – by the mechanism of local anodic dissolution, at potentials region from -0.8 V to -0.98 V – by the mixed mechanism, at potentials less than -0.98 V by hydrogen breaking mechanism. The susceptibility to SCC of high-frequency weld joints, estimated by the coefficient of KS, in the potential range from the corrosion potential to -1.2 V increases (KS increases from 1.1 to 1.8), which is less intense than for steel 17G1S/17G1S-U (KS increases from 1.1 to 2.8), for arc weld joints – does not change much enough (KS increases from 1.1 to 1.3). The validity of KS coefficient introduced for the base metal for comparative assessment of the susceptibility to SCC of welded joints, is provided in case that there are no defects in the welds and SCC occurs on base metal.

References

B. Pinheiro, I. Pasqualino, S. Cunha, Fatigue life assessment of damaged pipelines under cyclic internal pressure: pipelines with longitudinal and transverse plain dents, International Journal of Fatigue, 68, 38 (2014); https://doi.org/10.1016/j.ijfatigue.2014.06.003.

J. X. Zhao, W. X. Chen, K. Chevil et al, Effect of pressure sampling methods on pipeline integrity analysis. Journal of Pipeline Systems Engineering and Practice, 8 (4), Article 04017016 (2017).

M. A. Neves Beltrão, E. M. Castrodeza, F. L. Bastian, Fatigue crack propagation in API 5L X-70 pipeline steel longitudinal welded joints under constant and variable amplitudes, Fatigue and Fracture of Engineering Materials and Structures, 34 (5), 321 (2011); https://doi.org/10.1111/j.1460-2695.2010.01521.x.

O. Fatoba, R. Akid, Low cycle fatigue behaviour of API 5L X65 pipeline steel at room temperature, Procedia Engineering. 2014. 74, 279 (2014); https://doi.org/10.1016/j.proeng.2014.06.263.

J. C. R. Pereira, A. M. P. de Jesus, A. A. Fernandes, G. Varelis, Monotonic, low-cycle fatigue, and ultralow-cycle fatigue behaviors of the X52, X60, and X65 piping steel grades, Journal of Pressure Vessel Technology, 138 (3), Article 031403 (2016); https://doi.org/10.1115/1.4032277.

C. Taylor, S. Das, L. Collins, M. Rashid, Fatigue crack growth at electrical resistance welding seam of API 5L X-70 steel line pipe at varied orientations. Journal of Offshore Mechanics and Arctic Engineering, 139 (3), article 031401 (2017); https://doi.org/10.1115/1.4035385.

B. Y. Lee, S. Lee, Studies on the microstructure and corrosion characteristics of electrical resistance welded steel, Advances in nondestructive evaluation, 270-273, 2327 (2004); https://doi.org/10.4028/www.scientific.net/KEM.270-273.2327.

Z. Bi, R. Wang, X. Jing, Grooving corrosion of oil coiled tubes manufactured by electrical resistance welding, Corrosion Science, 57, 67 (2012); https://doi.org/10.1016/j.corsci.2011.12.033.

L. M. Vyboishchik, A. V. Ioffe, Formation of structure and properties in welded joints of oil line pipes, Metal science and heat treatment. 2013. 54 (9-10), 535 (2013); https://doi.org/10.1007/s11041-013-9544-5.

P. Tian, K. Xu, G. Lu, G. Qiao, B. Liao, Evaluation of the mechanical properties of the X52 high frequency electric resistance welding pipes, Іnternational Journal of Pressure Vessels and Piping. 2018. 165, 59 (2018); https://doi.org/10.1016/j.ijpvp.2018.06.006.

Z. Y. Liu, C. W. Du, C. Li, F. M. Wang, X. G. Li, Stress Corrosion Cracking of Welded API X70 Pipeline Steel in Simulated Underground Water, Journal of Materials Engineering and Performance, 22, 2550 (2013); https://doi.org/10.1007/s11665-013-0575-2.

HongxiaWanCuiwei, Du Zhiyong Liu, Dongdong Song Xiaogang Li, The effect of hydrogen on stress corrosion behavior of X65 steel welded joint in simulated deep sea environment, Ocean Engineering, 114 (1), 216 (2016); https://doi.org/10.1016/j.oceaneng.2016.01.020.

Yu. N. Antipov, E. V. Dmitrenko, A. A. Kovalenko, S. A. Goryanoy, A. A. Rybakov, S. E. Semenov, T. N. Filipchuk, Improvement of operational reliability of oil and gas pipelines manufactured by the method high-frequency welding, Strength Problems, 5, 147 (2009).

Yu. N. Antipov, E. V. Dmitrenko, A. A. Kovalenko, S. A. Goryanoy, A. A. Rybakov, S. E. Semenov, T. N. Filipchuk PJSC "Interpipe NMTW", Automatic welding. 2014. 3, 43 (2014).

R. Antunes de Sena, І. Napoleão Bastos, G. Mendes Plat, Theoretical and Experimental Aspects of the Corrosivity of Simulated Soil Solutions, International Scholarly Research Notices, article ID 103715, 6 pages, (2012).

L.I. Nyrkova, P.E. Lisovyi, L.V. Goncharenko, S.О. Osadchuk, V.A. Kostin, A.V. Klymenko, Regularities of Stress-Corrosion Cracking of Pipe Steel 09G2S at Cathodic Polarization in a Model Soil Environment, Physics and chemistry of solid state, 22 (4), 828 (2021); https://doi.org/10.15330/pcss.22.4.

ДСТУ 8972:2019 Steel and alloys. Methods for detection and determination of grain size

ГОСТ 9.915-2010 Unified system of corrosion and ageing protection. Metals, alloys, coatings, products. Test methods of hydrogen embrittlement.

L. Nyrkova, S. Prokopchuk, S. Оsadchuk, L. Goncharenko, Stress corrosion of welded joints of pipeline steel obtained by various welding methods, Physico-chemical mechanics of materials, Special issue 13, 83 (2020).

ГОСТ 9.005-72 Unified system of corrosion and ageing protection. Metals, alloys, metallic and non-metallic coatings. Permissible and impermissible contacts with metals and non-metals.

Published

2022-09-21

How to Cite

Nyrkova, L., Goncharenko, L., Osadchuk, S., Prokopchuk, S. M., Klymenko, A., & Kostin, V. (2022). Sress-corrosion cracking under cathodic protection of low alloy steel joints with high frequency weld and arc weld: Array. Physics and Chemistry of Solid State, 23(3), 559–568. https://doi.org/10.15330/pcss.23.3.559-568

Issue

Section

Scientific articles (Technology)

Most read articles by the same author(s)