Vladimir State University (Vladimir, Russia)1 ; Moscow Polytechnic University, (Moscow, Russia)2 ; National University of Science and Technology MISIS (Moscow, Russia)3
V. B. Deev*, Chief Researcher1, Head of the Department of Equipment and Technologies of Welding Production2, Professor of the Department Metal Pressure Treatment3, Doctor of Technical Sciences, Professor, deev.vb@mail.ru
Vladimir State University (Vladimir, Russia)1 ; Moscow Polytechnic University, (Moscow, Russia)2
Е. S. Prusov, Professor of the Department of Materials Science and Power Engineering1, Professor of the Department of Equipment and Technologies of Welding Production2, Doctor of Technical Sciences, Associate Professor, eprusov@mail.ru
Pacific National University (Khabarovsk, Russia)
E. Kh. Ri, Head of the Higher School of Industrial Engineering of the Polytechnic Institute, Doctor of Technical Sciences, Professor, erikri999@mail.ru
*Corresponding author.
Modern concepts of the mechanisms by which nanosecond electromagnetic pulses (NEMPs) influence the structure formation of cast alloys and in situ reinforced metal matrix composites are reviewed. Published data demonstrating the ability of pulsed electric and electromagnetic fields to modify the short-range atomic order, intensify mass transfer, increase the solubility of alloying elements, and alter nucleation conditions are summarized. Based on the theory of crystal nucleation and growth, it is shown that the modifying effect of NEMPs may be associated with changes in the thermodynamic conditions of solidification, including a reduction in the effective nucleation energy barrier, an increase in the density of crystallization sites, activation of heterogeneous nucleation, and suppression of crystal growth. Experimental results describing the effect of NEMPs (15 and 40 kV) combined with lithium modification (0.3 wt.%) on the microstructure of Al-Mg2Si (15, 20, and 25 wt.%) aluminum matrix composites are presented. It is demonstrated that NEMP treatment of solidifying melts combined with chemical modification promotes the refinement of in situ Mg2Si reinforcing particles and transforms their morphology into a more compact shape. The combined NEMPs treatment of melts provides promising opportunities for the development of advanced materials with enhanced physical and mechanical properties through controlled solidification and microstructure evolution.
The research was funded by the Russian Science Foundation (Project № 20-19-00687-П, https://rscf.ru/project/23-19-45019/).
1. Dantzig J. A., Rappaz M. Solidification. Lausanne: EPFL Press, 2009. 621 p.
2. Li R. X., Zhou X., Wei R. X., Li L. Application of physical refinement methods in metal solidification process. Special Casting and Nonferrous Alloys. 2024. Vol. 44, Iss. 12. pp. 1635–1649.
3. Selyanin I. F., Deev V. B., Belov N. A., Prikhodko O. G., Ponomareva K. V. Physical modifying effects and their influence on the crystallization of casting alloys. Russian Journal of Non-Ferrous Metals. 2015. Vol. 56, Iss. 4. pp. 434–436.
4. Li Q. L., Xia T. D., Lan Y. F., Li P. F. Effects of melt superheat treatment on microstructure and wear behaviours of hypereutectic Al-20Si alloy. Materials Science and Technology. 2014. Vol. 30, Iss. 7. pp. 835–841.
5. Wang Q., Geng H., Wang F., Lin X., Wang C. Effect of parameters of thermal-rate treatment of melt on iron-containing phases in alloy Al–15%Si–2.7%Fe. Metal Science and Heat Treatment. 2016. Vol. 58, Iss. 7–8. pp. 405–410.
6. Vorozhtsov S., Kudryashova O., Promakhov V., Dammer V., Vorozhtsov A. Theoretical and experimental investigations of the process of vibration treatment of liquid metals containing nanoparticles. JOM. 2016. Vol. 68, Iss. 12. pp. 3094–3100.
7. Eskin D. G. Ultrasonic processing of molten and solidifying aluminium alloys: overview and outlook. Materials Science and Technology. 2017. Vol. 33, Iss. 6. pp. 636–645.
8. Nikitin K. V., Nikitin V. I., Timoshkin I. Y., Glushchenkov V. A., Chernikov D. G. Melt treatment by pulsed magnetic fields aimed at controlling the structure and properties of industrial silumins. Russian Journal of Non-Ferrous Metals. 2016. Vol. 57, Iss. 3. pp. 202–210.
9. Znamenskii L. G., Ivochkina O. V., Kulakov B. A. Electro-impulsive nanotechnology for preparing an aluminum-refractory-metal master alloy. Metallurgist. 2005. Vol. 49, Iss. 1–2. pp. 72–76.
10. Deev V. B., Prusov E. S., Kutsenko A. I. Theoretical and experimental evaluation of the effectiveness of aluminum melt treatment by physical methods. Metallurgia Italiana. 2018. No. 2. pp. 16–24.
11. Deev V. B., Prusov E. S., Ri E. H. Physical methods of processing the melts of metal matrix composites: current state and prospects. Russian Journal of Non-Ferrous Metals. 2022. Vol. 63, Iss. 3. pp. 292–304.
12. Deev V., Ri E., Prusov E. Mechanism of influence of nanosecond electromagnetic pulses on crystallization behavior of aluminum alloys. METAL 2018 - 27th International Conference on Metallurgy and Materials: Conference Proceedings. 2018. pp. 1363–1368.
13. Ri E. Kh., Ri H., Ermakov M. A., Knyazev G. A., Dzhou B. L., Ri V. E. Solidification of low-silicon iron under the action of nanosecond electromagnetic pulses. Steel in Translation. 2013. Vol. 43, Iss. 8. pp. 471–473.
14. Popel P., Dahlborg U., Calvo-Dahlborg M. On the existence of metastable microheterogeneities in metallic melts. IOP Conference Series: Materials Science and Engineering. 2017. Vol. 192. 012012.
15. Khalouk K., Mayoufi M., Gasser J. G. Are there phase transitions in liquid metallic alloys? Philosophical Magazine. 2010. Vol. 90, Iss. 20. pp. 2695–2709.
16. He Y., Li J., Wang J., Beaugnon E. Liquid–liquid structure transition in metallic melt and its impact on solidification: a review. Transactions of Nonferrous Metals Society of China. 2020. Vol. 30, Iss. 9. pp. 2293–2310.
17. Wang J., Qi J., Zhao Z., Guo H., Zhao T. Effects of electric pulse modification on liquid structure of Al–5%Cu alloy. Transactions of Nonferrous Metals Society of China. 2013. Vol. 23, Iss. 9. pp. 2792–2796.
18. Timoshkin I. Y., Nikitin K. V., Nikitin V. I., Deev V. B. Influence of treatment of melts by electromagnetic acoustic fields on the structure and properties of alloys of the Al–Si system. Russian Journal of Non-Ferrous Metals. 2016. Vol. 57, Iss. 5. pp. 419–423.
19. Guo J., Wang F., Zhang S., Zhou Y., Zhu L. Effect of high-frequency electric pulse on the solidification microstructure and properties of hypoeutectic Al–Si alloy. Materials. 2024. Vol. 17, Iss. 2. 468.
20. Bao X., Ma Y., Xing S., Liu Y., Shi W. Effects of pulsed magnetic field melt treatment on grain refinement of Al-Si-Mg-Cu-Ni alloy direct-chill casting billet. Metals. 2022. Vol. 12, Iss. 7. 1080.
21. Yang Y. S., Zhou Q., Hu Z. Q. The influence of electric current pulses on the microstructure of magnesium alloy AZ91D. Materials Science Forum. 2005. Vol. 488–489. pp. 201–204.
22. Jiang H., Zhao J., Wang C., Liu X. Effect of electric current pulses on solidification of immiscible alloys. Materials Letters. 2014. Vol. 132. pp. 66–69.
23. Schenk T., Holland-Moritz D., Simonet V., Bellissent R., Herlach D. M. Icosahedral short-range order in deeply undercooled metallic melts. Physical Review Letters. 2002. Vol. 89. 075507.
24. Barrat J.-L., Hansen J.-P. Basic Concepts for Simple and Complex Liquids. Cambridge : Cambridge University Press, 2003. 308 p.
25. Gavrilin I. V. Melting and crystallization of metals and alloys. Vladimir : VlSU, 2000. 260 p.
26. Brodova I. G., Popel P. S., Barbin N. M., Vatolin N. A. Melts as the basis for the formation of the structure and properties of aluminum alloys. Yekaterinburg : UrO RAN, 2005. 369 p.
27. Kelton K. F., Greer A. L. Nucleation in condensed matter: applications in materials and biology. Amsterdam : Elsevier, 2010. 743 p.
28. Wang J., Xue Q., Chang G., Tang Y., Wang J., Cang D. Effects of electric pulse on microstructure of Al–Si alloy in liquid and solid states. Journal of University of Science and Technology Beijing. 2004. Vol. 11, No. 2. pp. 123–126.
29. Qi J., Wang J., He L., Zhao Z., Du H. An investigation for structure transformation in electric pulse modified liquid aluminum. Physica B: Condensed Matter. 2011. Vol. 406, Iss. 4. pp. 846–849.
30. Chen H., Jie J., Fu Y., Ma H., Li T. Grain refinement of pure aluminum by direct current pulsed magnetic field and inoculation. Transactions of Nonferrous Metals Society of China. 2014. Vol. 24. pp. 1295–1300.
31. Wang B., Yang Y., Zhou J., Tong W. Microstructure refinement of an AZ91D alloy solidified with pulsed magnetic field. Transactions of Nonferrous Metals Society of China. 2008. Vol. 18. pp. 536–540.
32. Eckert S., Nikrityuk P., Rabiger D., Eckert K., Gerbeth G. Efficient melt stirring using pulse sequences of a rotating magnetic field: Part I. Flow field in a liquid metal column. Metallurgical and Materials Transactions B. 2007. Vol. 38. pp. 977–988.
33. Choi J.-K., Ohtsuka H., Xu Y., Choo W.-Y. Effects of a strong magnetic field on the phase stability of plain carbon steels. Scripta Materialia. 2000. Vol. 43. pp. 221–226.
34. Zhao Z., Liu Y., Liu L. Grain refinement induced by a pulsed magnetic field and synchronous solidification. Materials and Manufacturing Processes. 2011. Vol. 26, Iss. 9. pp. 1202–1206.
35. Chalmers B. Theory of solidification. Moscow : Мetallurgiya, 1968. 288 p.
36. Deev V. B., Prusov E. S., Ree E. Kh., Kim E. D. Influence of treatment of melts by nanosecond electromagnetic pulses on the distribution of elements in the structure of cast aluminum matrix composites. Tsvetnye Metally. 2023. No. 7. pp. 64–69.
37. Prusov E., Shabaldin I., Deev V. Quantitative characterization of the microstructure of in situ aluminum matrix composites. Journal of Physics: Conference Series. 2021. Vol. 2131, Iss. 4. 042040.