| 2002 №05 (01) | 2002 №05 (03) |
The Paton Welding Journal, 2002, #5, 7-9 pages
Peculiarities of cold cracking in welding of high-strength low-alloy steels
V.I. Shvachko, S.N. Stepanyuk
E.O. Paton Electric Welding Institute of the NASU 11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine.Abstract
Peculiarities of cold cracking of high-strength low-alloy steels are considered using a physical model. It is shown that their structure becomes highly sensitive to the embrittling effect of hydrogen under the influence of high temperature, losing the positive effect of thermomechanical treatment, and thus, becomes more susceptible to cold cracking
Keywords: high-strength low-alloy steels, thermomechanical treatment, cold cracks, reversible hydrogen brittleness, microcleavage stress, toughness coefficient, high-temperature heating, HAZ of a welded joint
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