PSI - Issue 20

G.S Ammosov et al. / Procedia Structural Integrity 20 (2019) 306–309 G.S Ammosov and M.P. Lebedev / Structural Integrity Procedia 00 (2019) 000–000

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4. Conclusion Based on the comparison of experimental data and calculated ratios, differences in weld dimensions in width and height of the weld reinforcement can be one of the serious factors determining the cold resistance of a welded joint of the VST. The dependences of the change in the deposited weld metal area on the structural composition of the HAZ metal with its strength characteristics are considered. The service life of welded joints of the VST is directly related to the weld deposit volume and structural composition of the HAZ. Thus, adjusting the volume of the deposited weld metal and, accordingly, the consumption of welding material during arc welding, which depends on the choice of a joint design and welding technology, the strength characteristics of welded joints could be improved and, thereby, significantly influence the service life of VST. Acknowledgements This research has been supported by The Ministry of Science and Education of Russian Federation (Project III.28.1.1). References Ammosov, A.P., Ammosov, G.S., Aminov, T.Sh., Ilyin, G.Yu., Antonov, A.A., 2008. Corrosion damageability of welded joints of tanks. Welding industry 7, 24-28. Ammosov, G.S., Ivanov, J.S., Ammosov, A.P., 2017. Features of corrosion exhaustion of reservoir life and an assessment of the intensity of the stress state increase in welds. Science and Education 1, 75-80. Ammosov, A.P., Kornilova, Z.G., 2004. Electrode consumption during manual arc welding of metal structures. Welding industry 1. 27-29. Ammosov, A.P., Seyffart, P.I., Vasilyev, V.G., Dovzhenko, V.A., 1993. Structural transformations and cold resistance of 09Mn2Si steel joints made by arc welding. Automatic Welding 2, 12-15. Bakshi, O.A., Shatov, A.A., 1966. On the stress state and deformation of a solid material in welded joints with hard and soft interlayers. Welding industry 5, 7-16. Dovzhenko, V.A., Vasilyev, V.G., Malevsky, Yu.B., 1984. Kinetics of austenite transformation in 09Mn2Si steel under the influence of the thermal cycle of welding. Automatic welding 9, 20-23. Kalner, V.D., Shor, F.I., 1997. Hardness conversion tables. Metallography and heat treatment of metals 9, 59-61 Markovets, M.P., 1979. Determination of mechanical properties of metals by hardness. Moscow, Publ. house Mashinostroenie, pp. 191. Seyffarth P., Kuscher, G. Schweiss, 1983. ZTU – Schaubilder. Berlin, VEB Verlag Technik, pp. 233. Rozenshteyn, I.M., 1995. Accidents and reliability of steel tanks. Moscow, Publ. House Nedra, pp. 253. Zakharova, I.V., Chichkarev, E.A., Vasilyev, V.G. et al., 2001. Structure and Properties of the HAZ metal of low-alloyed pipe steel compounds modified with calcium. Automatic Welding 8, 18-21.