Automatic Welding, 2020, №09



2020 №09 (01)

DOI of Article 10.37434/as2020.09.02

2020 №09 (03)

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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

References

1. Shimanovskyi, O.V. (2020) Essays on problems of out of class bridges. Kyiv, Stal [in Russian].
2. Kovtunenko, V.A., Sineok, A.G., Gerasimenko, A.M., Sadorozhny, V.A. (2005) Typical damages of welded metal structures of bridges. The Paton Welding J., 10, 27-32.
3. Konyukhov, A.D. (1995) Corrosion and reliability of railway equipment. Moscow, Transport [in Russian].
4. Konyukhov, A.D. (2006) Rolled stock with improved properties for more effective bridge structures. Stal, 1, 74–76 [in Russian].
5. Konyukhov, A.D., Ruvinskaya, E.M. (2002) Bridge spans from atmospheric-resistant steel. Zashchita Metallov, 1, 89– 95 [in Russian].
6. Zhang, B., Chen, W., Xu, J. (2018) Mechanical behavior of prefabricated composite box girders with corrugated steel webs under static loads. J. of Bridge Engineering, 1, 23(10). https://doi.org/10.1061/(ASCE)BE.1943-5592.0001290
7. Wu, J., Yang, D., Su, Q. (2019) Inspection and evaluation strategy for uncoated weathering steel bridges. InIOP Conference Series: Materials Sci. and Engin., 677, 2, 22-23. IOP Publishing. https://doi.org/10.1088/1757-899X/677/2/022023
8. Kovtunenko, V.A., Gerasimenko, A.M., Petruchenko, A.A. et al. (2007) Steel roll stock of improved atmosphere resistance for welded building structures. In: Dorogy i Mosty, NDI, 7, 297-304 [in Russian].
9. Kovtunenko, V.A., Gerasimenko, A.M., High-strength sparsely-alloyed steel 06G2B ≥ 440 MPa for bridge building. Avtomobilni Dorogy i Dorozhnie Budivnytsvo, 69, 106-113 [in Russian].
10. Kovtunenko, V.A., Gerasimenko, A.M., Gotsulyak, A.A. (2006) Selection of steel for critical building welded structures. The Paton Welding J., 11, 27-31.
11. Sineok, A.G., Gerasimenko, A.M., Ryabokon, V.D. et al. (2014) Atmosphere-resistant rolled stock of c355-500 strength class for bridge metal structures. Mosty i Tonneli: Teoriya, Issledovaniya, Praktika, 5, 83-91 [in Russian].

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