2020 №09 (01) DOI of Article
2020 №09 (03)

Automatic Welding 2020 #09
Avtomaticheskaya Svarka (Automatic Welding), #9, 2020, pp. 22-27

Impact of thermal cycles of welding on formation of the structure and properties of corrosion-resistant steel 06G2BDP

A.V. Zavdoveev1, V.D. Poznyakov1, S.L. Zhdanov1, M. Rogante2, A.O. Maksymenko1, O.G. Sineok1, A.M. Gerasimenko1
1E.O. Paton Electric Welding Institute of the NAS of Ukraine. 11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine. E-mail: office@paton.kiev.ua
2Rogante Engineering Office, 62012 Civitanova Marche, Italy

High-strength low-alloyed steels with high service properties, in particular, resistance to atmospheric corrosion, become ever wider accepted in mechanical and industrial engineering. Their application allows not only reducing the specific weight of metal structures, but also increasing their reliability and operating life. In view of that, 06G2BDP steel with higher corrosion resistance was developed on the base of 06G2B steel. Copper and phosphorus content in the steel was increased, in order to improve its corrosion resistance. The work deals with the issue of the impact of thermal cycles of welding on the mechanical properties and structure of HAZ metal in welded joints of atmospheric-resistant steel 06G2BDP. It is shown that by the values of static strength, ductility and impact toughness 06G2BDP steel is not inferior to 06G2B steel, and is superior to 10KhCND steel. Its application is rational as an alternative to the above-mentioned steels in fabrication of modern metal structures by gas-shielded manual and mechanized arc welding in the specified for them range of HAZ metal cooling rates. 11 Ref., 2 Tabl., 4 Fig.
Keywords: corrosion-resistant steel, thermal cycle of welding, heat-affected zone, structure, properties

Received: 26.08.2020


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