| 2004 №08 (06) | 2004 №08 (08) |
The Paton Welding Journal, 2004, #8, 29-33 pages
Effect of residual stresses on technological strength of welded joints of high-strength steel 14KhGN2MDAFB
L.M. Lobanov, V.D. Poznyakov, O.L. Mikhoduj
E.O. Paton Electric Welding Institute of the NASU 11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine.Abstract
Effect of diffusible hydrogen content and welding heat input on delayed fracture resistance of 14KhGN2MDAFB steel welded joints made by using wire Sv-10KhN2GSMFTYu, has been studied. Relationship has been established between the level of residual stresses and longitudinal and transverse cold crack resistance of the joints in the above steel welded using wires that provide the weld metal with bainitic-martensitic (BM), ferritic-bainitic (FB) and austenitic (A) structures.
Keywords: arc welding, high-strength low-alloy steels, welded Joint, cold cracks, residual welding stresses, diffusive hydrogen, heat input of welding, weld metal, heat-affected zone
References
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