Corrosion cracking of welded joints in a pipe steel in a hydrogen-sulfide medium

Conclusions 1. The maximum long-term corrosion strength in the NACE solution was recorded for the specimens welded under the conditions of specimens 2 (3.0 kJ/mm); their threshold stress was equal to 250 MPa (0.7_0.2); for other types of specimens welded with a heat input of 6.0 kJ/mm and 1.25 kJ/mm the threshold stress was equal to 180 and 160 MPa, respectively.2. In the experiments with a low strain rate of the metal the highest relative resistance was recorded for the specimens 2 and the resistance decreased in the sequence 213.E. O. Paton Electric Welding Institute, Academy of Sciences of the Ukraine, Kiev. G.V. Karpenko Physico-mechanical Institute, Academy of Sciences of the Ukraine, L'vov. Translated from Fiziko-Khimicheskaya Mekhanika Materialov, Vol. 29, No. 2, pp. 52–56, March–April, 1993.