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2022 №03 (01) DOI of Article
10.37434/tpwj2022.03.02
2022 №03 (03)

The Paton Welding Journal 2022 #03
The Paton Welding Journal, 2022, #3, 19-26 pages

Effect of parameters of pulsed-arc welding on the formation of weld metal and microstructure of heat-affected zone of 09G2S steel

S.Yu. Maksymov, D.M. Krazhanovskyi, Yu.A. Shepelyuk, S.V. Osynska


E.O. Paton Electric Welding Institute of the NASU. 11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine. E-mail: maksimov@paton.kiev.ua

Abstract
one of the promising ways to solve the problem of increasing the service life of welded structures is the development of welding methods based on the use of pulsed control of energy parameters of the process. the pulsed mode of welding allows performing a regulated heat input in the welded butt joint zone, controlling the mode of melting the electrode metal, forming the structure of weld metal and heat-affected zone (HAZ). It was found that with an increase in the frequency of pulsed-arc welding, it is possible to reduce the width of the HAZ and the region of a coarse grain. thus, in the case of welding low-alloy steels, due to the use of technology with a pulsed process, there is a prospect of reducing the width of the overheating region, which is important for the cases of repair of pipe wall thinning during remelting of defects in the operating pipeline using a mechanized method.
Keywords: main pipelines, pulsed-arc welding, technological parameters, welded joint, geometric parameters, structure

Received: 26.01.2022
Accepted: 16.05.2022

References

1. Saraev, Yu.N., Makarova, L.I., Kirilova, N.V. et al. (2001) Ways of increase in effi ciency of construction, operation and repair of oil and gas equipment and main pipelines on the base of adaptive pulsed technologies of welding and surfacing. Svarochn. Proizvodstvo, 5, 31-37 [in Russian].
2. A.G., Tarlinsky, V.D., Shejkin, M.Z. (1979) Modern methods of fusion welding of main pipelines. Moscow, Nedra [in Russian].
3. Saraev, Ju.N. (1999) Increase in effi ciency of arc welding based on an adaptive algorithm for pulsed control of process energy parameters. In: Proc. of Int. Conf. LUI Join`99 on Effi cient Welding in Industrial Applications (ICEWIA), 222- 226.
4. Krampit, N.Yu., Krampit, A.G. (2014) Investigation of the process of CO2 consumable electrode pulsed arc welding. Vestnik MGTU, Ser. Mashinostroenie, 5, 106-112 [in Russian].
5. Knyazkov, A.F., Knyazkov, S.A. Active control of melting and transfer of electrode metal. Svarka i Diagnostika, 4, 27- 32 [in Russian].
6. Verevkin, A.V. (2010) Increase in effi ciency of CO2 welding of main pipeline fi xed joints through the application of pulse power supply of the welding arc: Syn. of Thesis for Cand. of Tech. Sci. Degree. Barnaul [in Russian].
7. Krampit, M.A., Burakova, E.M., Zubenko, L.N. (2014) Tendencies of development of pulsed methods for welding process control. In: Proc. of 5th Int. Sci.-Pract. Conf. on Innovative Technologies and Economics in Mechanical Engineering, Vol. 1, 22-23 May 2014.
8. Yakushin, B.F., Bakulo, A.V. (2017) On mechanism of weld metal structure formation in pulsed arc welding. Svarochn. Proizvodstvo, 9, 29-35 [in Russian].
9. Manikya Kanti, K., Srinivasa Rao, P., Ranga Janardhana, G. (2013) Optimization of Weld Bead Penetration in Pulsed Gas Metal Arc Welding using Genetic Algorithm. Int. J. of Emerging Technology and Advanced Engineering, 3(3), 368-371.
10. Zhernosekov, A.M., Andreev, V.V. (2007) Consumable electrode pulsed arc welding. The Paton Welding J., 10, 48-52.
11. Golikov, N.I., Maksimova, E.M., Saraev, Yu.N. (2019) Investigation of the microstructure of the heat-aff ected zone of low-alloyed steel during pulsed arc welding under conditions of low climatic ambient temperatures. OP Conf. Series: Materials Sci. and Engineering, 681. https://doi.org/10.1088/1757-899X/681/1/012015
12. Zavdoveev A.V., Poznyakov V.D., Rogante M., et al. (2020) Features of structure formation and properties of joints of S460M steel made by pulsed-arc welding. The Paton Welding J., 6, 9-13. https://doi.org/10.37434/tpwj2020.06.02
13. Zavdoveev, A.V., Poznyakov, V.D., Zhdanov, S.L. et al. Infl uence of pulsed-arc welding conditions on change of parameters of weld and HAZ of welded joints and mechanical properties of low-alloy steels. The Paton Welding J., 10, 21-26. https://doi.org/10.37434/tpwj2020.12.03
14. Krampit, A.G., Krampit, N.Yu. (2015) Methods of weld formation control. Tekhnologii i Materialy, 2, 21-26 [in Russian].
15. Golikov, N.I., Sidorov, M.M., Maksimova, E.M., Saraev, Yu.N. (2018) Examination of microstructure of welded joints made under negative temperature conditions. Science - Education - Production: Experience and Prospects of Development. In: Proc. of 14th Int. Sci.-Tech. Conf. (8-9 February 2018), 161-164.
16. Saraev, Y.N., Bezborodov, V.P. (2013) Eff ect of the energy parameters of the welding process on the structure and properties of welded joints in low-alloy steels. Welding Intern., 2(9), 678-680. https://doi.org/10.1080/09507116.2012.753276

Suggested Citation

S.Yu. Maksymov, D.M. Krazhanovskyi, Yu.A. Shepelyuk, S.V. Osynska (2022) Effect of parameters of pulsed-arc welding on the formation of weld metal and microstructure of heat-affected zone of 09G2S steel. The Paton Welding J., 03, 19-26.