The Paton Welding Journal, 2009, №12



2009 №12 (07)

2009 №12 (02)

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TPWJ, 2009, #12, 2-6 pages  
RISK OF COLD CRACKING IN WELDING OF STRUCTURAL HIGH-STRENGTH STEELS


Journal                    The Paton Welding Journal
Publisher                 International Association «Welding»
ISSN                       0957-798X (print)
Issue                       № 12, 2009 (December)
Pages                      2-6
 
 
Authors
V.I. MAKHNENKO, V.D. POZNYAKOV, E.A. VELIKOIVANENKO, O.V. MAKHNENKO, G.F. ROZYNKA and N.I. PIVTORAK
E.O. Paton Electric Welding Institute, NASU, Kiev, Ukraine
 
 
Abstract
Mathematical model of the risk of cold cracking in welding of structural high-strength steels is considered. The model is based on distributed data on the state of microstructure, content of diffusible hydrogen and stressed state in elementary volumes within the welded joint zone. It is shown that the model makes it possible to more precisely evaluate the local conditions of cold cracking on the basis of the above parameters.
 
 
Keywords: arc welding, low-alloy high-strength steels, brittle fracture, cold cracks, diffusible hydrogen, microstructure, stressed state, probability model
 
 
Received:                02.09.09
Published:               28.12.09
 
 
References
1. (1998) Welding Handbook: Materials and Applications. Vol. 4, Pt 2. Miami, USA.
2. Makhnenko, V.I ., Korolyova, T.V., Lavrinets, I.G. (2002) Effect of microstructural transformations on redistribution of hydrogen in fusion welding of structural steels. The Paton Welding J., 2, 6-13.
3. (1967) Thermophysical properties of steels and alloys used in power engineering: Refer. Book. Ed. by B.E. Nejmark. Moscow: Energiya.

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