PSI - Issue 40

E.E. Abashkin et al. / Procedia Structural Integrity 40 (2022) 1–6

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Abashkin E.E. / Structural Integrity Procedia 00 (2022) 000 – 000

values Ϭ t = 255÷342 MPa. Metallographic tests have shown that a fer rite-pearlite structure is formed in the heat affected zone; according to (GOST 8233-56) scale 7 the ratio of pearlite and ferrite is estimated at 7 points. Deviation from the found values of the arc thermal power leads to the grain growth in the weld metal zone and to a growth of non-metallic inclusions, which negatively affects the quality of the permanent joint. Deviation from the found values of the arc thermal power leads to the growth of the grain of the seam metal zone and an increase of non-metallic inclusions, which has a negative effect on the quality of the permanent joint. Thus, the experiment found that the use of combined heat exposure on the welding unit using flux-cored wire with an aluminothermic filler seems to be preferable in comparison with traditional welding methods. The samples obtained during the tests meet the requirements for building steel structures (GOST 23118-2012 "Building steel structures"). Acknowledgements This work was carried out within the frame of the state assignment of the Khabarovsk Federal Scientific Center of the Far Eastern Branch of the Russian Academy of Sciences. The studies were carried out using the resources of the C enter for Shared Use of Scientific Equipment “Center for Processing and Storage of Scientific Data of the Far Eastern Branch of the Russian Academy of Sciences”, funded by the Russian Federation represented by the Ministry of Science and Higher Education of the Russian Federation under project No. 075-15-2021-663. References Abashkin E.E., Komarov O.N., Zhilin S.G., Predein V.V., Tkacheva A.V.,. Panchenko G.L. Russian Patent No. 2675876 (29 December 2017) Abashkin, E.E., Burenin, A.A., Zhilin, S.G., Komarov, O.N., Tkacheva, A.V. Simulation of residual distributions stress in welded connection // Materials Physics and Mechanics 2019.42(5), pp 671-689 Abashkin E. E., Zhilin S. G., and Komarov O. N. Structure formation of the heat-affected zone of the permanent joint made by the automatic submerged arc welding with the use of the flux-cored wire with thermite filler // Cite as: Proceedings of the International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2019 AlPConf. Proc. 2167, 020001-1-020001 4; https://doi.Org/10.1063/l.5131868 Published by AIP Publishing. 978-0-7354-1912-4/S30.00 Arabey A.B., Khotinov V.A., Struin A.O., Farber V.M., Weld seams in large-diameter pipe of K60 strength class, Steel Transl, 41(1), pp. 1-5 (2011). Kargin V.A., Tikhomirova L.B., Galay M.S. and Kuznetsova Y.S. Improving service properties of welded joints produced by aluminothermic welding, Weld. Int., 29(2) pp. 155-157 (2015) Komarov O.N., Zhilin S.G., Potianikhin D.A., Predein V.V., Abashkin E.E., Sosnin A.A., and Popov A.V., The influence of structure on the strength properties of casting steel obtained with the use of thermite materials, in Mechanics, AIP Conf Proc 1785, pp. 040027-1 – 040027-5 (2016) Makienko V. M., Baranov E.M., Romanov I.O., Stroitelev D.V., A flux-cored wire for deposition of high-manganese austenitic steel, Weld. Int., 23(12), pp. 944-947 (2009). Manakov A.L., Abramov A.D., Ilinykh A.S., Galay M.S. and Sidorov Je.S., Improvement of aluminothermic welding on the basis of the experimentally-theoretical research of welding seam cooling process ,J. Phys.: Conf. Ser., 1050, 012051 (2018) Mouallif Z., Radi B., Mouallif I., The Thermomechanical Modeling of Aluminothermic Welds Affected by Different Defects, Int. J. Eng. Res. Dev., 11, no. 10, pp 44-48 (2015) Sergejevs D., Mikhaylovs S., Analysis of factors affecting fractures of rails welded by alumino-thermic welding, Transp. Prob, 3(4-2), pp. 33-37 (2008). (in Russian). Tsurikhin S.N., Sokolov G.N., Lysak V.I, Zorin I.V., E.I. Lebedev I.V., Flux-cored wire for the deposition of alloys based on nickel aluminide, Weld. Int., 20(6), pp. 483-487 (2006). Ustinov A., Falchenko Yu., Melnichenko T. et al. // J. Mater. Proces. Technol. 2013. Vol. 213. P. 543-552 Yang K., Zhang Z.-X, Hu W.-Q., Bao Y.-F., Jiang Y.-F, A new type of submerged-arc flux-cored wire used for hardfacing continuous casting rolls, J. Iron. Steel Res. Int , 18(11), pp.74-79 (2011).