The Paton Welding Journal, 2021, №02



2021 №02 (04)

DOI of Article 10.37434/tpwj2021.02.05

2021 №02 (06)

---

The Paton Welding Journal, 2021, #2, 27-32 pages

Development of new generation flux-cored wires for gas-shielded arc welding of joints of low-alloy steels with ultimate strength of 640–940 MPa

V.M. Shlepakov and O.S. Kotelchuk

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

Abstract
The results of studying the properties of flux-cored wires with a metal core are considered, which were used as a base for suggesting approaches to development of compositions of flux-cored wires for gas-shielded arc welding of joints of low-alloy steels of higher and high strength. Application of dynamic thermal analysis of powder mixtures that model the wire cores, enabled obtaining information on kinetics of the processes which develop at heating and melting of fluxcored wire compositions that allows optimizing the core compositions. Recommendations were elaborated on selection and application of flux-cored wires for welding low-alloy high-strength steels. 10 Ref., 2 Tables, 3 Figures.
Keywords: arc welding, flux-cored wire, low-alloy high-strength steel

Received 02.12.2020

References

1. Karlsson, L., Bhadeshia, H.K.D.H. (2007) Novelty in welding consumables. Australian Welding J., 56, Third Quarter, 44–49.
2. Malyshevsky, V.A., Grishchenko, L.V., Baryshnikov, A.P. (1999) Welding consumables and technology of welding of high-strength steels. Voprosy Materialovedeniya, 20(3), 46– 62 [in Russian].
3. Widgery, D.J., Karlsson, J., Murugananth, M., Keehan, E. (2002) Approaches in the development of high strength steel weld metals. In: Proc. of 2nd Intern. Symp. on High Strength Steel Weld Metals (Norway, Brussels, Belgium). The European Coal and Steel Community, 1–10.
4. Wang, W., Lin, S. (2002) Alloying and microstructural management in developing SMAW electrodes for HSLA-100 steel. Welding J., Research Supplement, 81, 132–145.
5. Keehan, E., Karlsson, L., Andron, H.-O. Svensson, L.-E. (2006) New developments with C–Mn–Ni high strength steel weld metals properties. Ibid., 85, 211–218.
6. Keehan, E., Karlsson, L., Thuvander, M., Bergquist, E.L. (2007) Microstructural characterization of as deposited and reheated weld metal - high strength steel weld metals. Welding in the World, 51, 44-49. https://doi.org/10.1007/BF03266559
7. Shlepakov, V.N., Kotelchuk, A.S. (2019) Improvement of technological and sanitary-hygienic characteristics of of gas-shielded arc welding process. The Paton Welding J., 6, 29-33. DOI: https://doi.org/10.15407/as2019.06.05 https://doi.org/10.15407/as2019.06.05
8. Koseko, T., Thewlis, G. (2005) Inclusion in welds. Material Sci. and Technol., 21, 867-869. https://doi.org/10.1179/174328405X51703
9. Baryshnikov, A.P., Grishchenko, L.V., Malyshevsky, V.A. et al. (1996) Effect of oxygen content on impact toughness of weld metal produced in shielding gas medium. Progressivnye Materialy i Tekhnologii, 2, 221–227 [in Russian].
10. (2005) DSTU EN ISO 18276:2015 (EN ISO 18276:2006, IDT; ISO 18276:2006, IDT): Welding consumables. Tubular cored electrodes for gas-shielded and non-gas-shielded metal arc welding of high-strength steels. Classification. ISO Office, Switzerland.

---

Suggested Citation

V.M. Shlepakov and O.S. Kotelchuk (2021) Development of new generation flux-cored wires for gas-shielded arc welding of joints of low-alloy steels with ultimate strength of 640–940 MPa. The Paton Welding J., 02, 27-32.

---