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Influence of defects of welded joints of 17G1SU pipe steel on its resistance to hydrogen-sulfide cracking

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We have studied the influence of defects in welded joints of 17G1SU pipe steel performed by manual electric arc method with UONII 13/55R, FOX EV 50 (Böhler), and Basic One (Lincoln) electrodes on the serviceability of welded structures in air and environments containing hydrogen sulfide. We have established that bulk defects, having a total area of up to 15% of the calculated cross section of a welded joint performed with UONII 13/55R electrode, do not affect its strength under slow deformation (10−5 sec−1). Defects reduce significantly the resistance of welded joints to hydrogen-sulfide corrosion cracking: in the presence of comparable defects, the threshold stresses of specimens welded with UONII 13/55R and FOX EV 50 electrodes are 60 MPa lower than for specimens without defects.

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Authors and Affiliations

  1. Karpenko Physicomechanical Institute, Ukrainian National Academy of Sciences, Lviv, Ukraine

    M. S. Khoma, R. M. Yurkevych, H. V. Chumalo & O. I. Radkevych

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  1. M. S. Khoma
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  2. R. M. Yurkevych
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  3. H. V. Chumalo
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  4. O. I. Radkevych
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Corresponding author

Correspondence to H. V. Chumalo.

Additional information

Translated from Fizyko-Khimichna Mekhanika Materialiv, Vol. 47, No. 4, pp. 129–132, July–August, 2011.

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Khoma, M.S., Yurkevych, R.M., Chumalo, H.V. et al. Influence of defects of welded joints of 17G1SU pipe steel on its resistance to hydrogen-sulfide cracking. Mater Sci 47, 569–573 (2012). https://doi.org/10.1007/s11003-012-9429-6

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  • DOI: https://doi.org/10.1007/s11003-012-9429-6

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