The Paton Welding Journal, 2021, №12



2021 №12 (02)

DOI of Article 10.37434/tpwj2021.12.03

2021 №12 (04)

---

The Paton Welding Journal, 2021, #12, 18-23 pages

Calculated-experimental model of distribution of non-metallic inclusions in the metal of welds by sizes

L.A. Taraborkin, V.V. Holovko

E.O. Paton Electric Welding Institute of the NASU. 11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine. E-mail: v_golovko@ukr.net

Abstract
There is a large number of investigations on the impact of distribution of non-metallic inclusions in the weld metal on its structure and mechanical properties. However, the authors of these works do not describe the kinetics of forming such a distribution. The results of the development of a distribution model in the weld metal of non-metallic inclusions by sizes are presented. Formation of the calculation part of the model is based on the processing of experimental data on the sizes of non-metallic inclusions in the metal of welds, deposited by the methods of submerged arc welding and in shielding gas. Generalization and analysis of experimental data showed that the final distribution of inclusions in the metal of the studied welds is submitted to the law of gamma-distribution (probability is > 95 %). To describe the evolution of the distribution of non-metallic inclusions during weld formation, the authors proposed to apply a probabilistic model in the form of gamma-distribution with time-dependent parameters.
Keywords: low-alloy steel, welding, weld metal, non-metallic inclusions, distribution

Received 12.10.2021
Accepted: 24.12.2021

References

1. Oh, Y.J., Lee, S.Y., Byun, J.S. et al. (2000) Non-metallic inclusions and acicular ferrite in low carbon steel. Materials Transactions, JIM, 41, 12, 1663-1669. https://doi.org/10.2320/matertrans1989.41.1663
2. Quintana, M.A., McLane, J., Babu, S.S., David, S.A. (2001) Inclusion Formation in Self-Shielded Flux Cored Arc Welds. Welding J., 4, 98-105.
3. Babu, S.S. (2004) The mechanism of acicular ferrite in weld deposits. Current opinion in solid state and materials science, 8, 267-278. https://doi.org/10.1016/j.cossms.2004.10.001
4. Lee, T.K., Kim, H.J., Kang, B.Y., Hwang, S.K. (2000) Effect of Inclusion Size on the Nucleation of Acicular Ferrite in Welds. ISIJ International, 40, 12, 1260-1268. https://doi.org/10.2355/isijinternational.40.1260
5. Zhang, J., Lee, H.G. (2004) Numerical modeling of nucleation and growth of inclusions in molten steel based on mean processing parameters. Ibid, 44, 10, 1629-1638. https://doi.org/10.2355/isijinternational.44.1629
6. Kwon, Y.-J., Zhang, J., Lee, H.-G. (2008) A CFD-based Nucleation-growth-removal Model for Inclusion Behavior in a Gas-agitated Ladle during Molten Steel Deoxidation. Ibid, 48, 7, 891-900. https://doi.org/10.2355/isijinternational.48.891
7. Njzawa, H., Kato, Y., Sorimachi, K., Nakanishi, T. (1999) Agglomeration and Flotation of Alumina Clusters in Molten Steel. Ibid, 39, 5, 426-434. https://doi.org/10.2355/isijinternational.39.426
8. Zinngrebe, E., Van Hoek, C., Visser, H. et al. (2012) Inclusion Population Evolution in Ti-alloyed Al-killed Steel during Secondary Steelmaking Process. Ibid, 52, 1, 52-61. https://doi.org/10.2355/isijinternational.52.52
9. Hong, T., Debroy, T., Babu, S.S., David, S.A. (2000) Modeling of Inclusion Growth and Dissolution in the Weld Pool. Metallurgical and Materials Transactions: B., 20B, 2, 161-169. https://doi.org/10.1007/s11663-000-0141-9
10. Zhang, L., Thomas, B.G. (2003) Inclusion nucleation, growth, and mixing during steel deoxidation. UIUC, Continuous Casting Report № 200206, 1-19.
11. Zhang, B.W., Li, B.W. (2007) Growth Kinetics of Single Inclusion Particle in Molten Melts. Acta Metallurgica Sinica (English Letters), 20, 2, 129-138. https://doi.org/10.1016/S1006-7191(07)60017-9
12. Lucas J. van Vliet, Ian T. Young, Piet, W. (1998) Verbeek Recursive Gaussian Derivative Filters Fac. of Appl. Phys., Delft Univ. of Technol. DOI: 10.1109/ICPR.1998.711192 Conference: Pattern Recognition. Proceedings. Fourteenth International Conference on, Vol. 1.
13. Gradshtejn, I.S., Ryzhik, I.M. (1971) Tables of integrals, sums, series and products. Moscow, Nauka [in Russian].
14. Golovko, V.V., Pokhodnya, I.K. (2013) Effect of non-metallic inclusions on formation of structure of the weld metal in high-strength low-alloy steels. The Paton Welding J., 6, 2-10.

---

Suggested Citation

L.A. Taraborkin, V.V. Holovko (2021) Calculated-experimental model of distribution of non-metallic inclusions in the metal of welds by sizes. The Paton Welding J., 12, 18-23.

---