The Paton Welding Journal, 2003, №04

2003 №04 (02)

2003 №04 (04)

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The Paton Welding Journal, 2003, #4, 13-17 pages

Towards the problem of formation of longitudinal cracks in welded joints of high-strength steels

L.M. Lobanov, L.I. Mikhoduj, V.D. Poznyakov, O.L. Mikhoduj, V.G. Vasiliev, P.A. Strizhak

E.O. Paton Electric Welding Institute of the NASU 11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine.

Abstract
Technological sample and procedure of investigations have been developed that makes it possible to evaluate the effect of residual stresses on resistance of welded joints with multilayer welds to the initiation of longitudinal cold cracks. The resistance to the initiation of longitudinal cold cracks in 14KhGN2MDAFB steel welded joints, made by wire Sv-10KhGN2SMFTYu in mixture of gases Ar + 20 % CO2 was evaluated with allowance for the level of residual stresses.
Keywords: residual welding stresses, low-carbon alloy steel, structural transformations, delayed fracture, yield strength, ductility

References

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Suggested Citation

L.M. Lobanov, L.I. Mikhoduj, V.D. Poznyakov, O.L. Mikhoduj, V.G. Vasiliev, P.A. Strizhak (2003) Towards the problem of formation of longitudinal cracks in welded joints of high-strength steels. The Paton Welding J., 04, 13-17.

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