Wuhan Textile University, Wuhan, China¹ ; Vladimir State University named after Alexander and Nikolay Stoletovs, Vladimir, Russia² ; National University of Science and Technology MISiS, Moscow, Russia³:

V. B. Deev, Professor at the Faculty of Mechanical Engineering and Automation¹, Chief Researcher of Project Тeam Management², Professor at the Department of Metal Forming³, Doctor of Technical Sciences, e-mail: deev.vb@mail.ru

Vladimir State University named after Alexander and Nikolay Stoletovs, Vladimir, Russia:

E. S. Prusov, Associate Professor at the Department of Functional and Structural Materials Engineering, Candidate of Technical Sciences, e-mail: eprusov@mail.ru

Pacific National University, Khabarovsk, Russia:

E. H. Ri, Head of the Department of Casting and Metals Technology, Doctor of Technical Sciences, e-mail: erikri999@mail.ru

M. A. Ermakov, Associate Professor at the Department of Casting and Metals Technology, Candidate of Technical Sciences, e-mail: ermakovma@yandex.ru

This paper looks at the redistribution of alloying and trace elements in the structural components of cast aluminium alloys in the region of hypoeutectic compositions of a pseudobinary Al – Mg₂Si system after the melts have been exposed to nanosecond electromagnetic pulses. Comparison of the results of scanning electron microscopy and electron probe microanalysis of aluminium alloy specimens in their initial state and after exposure to nanosecond electromagnetic pulses with varying pulse amplitudes confirmed that the elemental composition of the structural components tend to change under the influence of nanosecond electromagnetic pulses. As the amplitude of the nanosecond electromagnetic pulse generator rose to 15 kV, the concentration of magnesium in the α-solid solution would consistently rise. At the same time, the concentration of magnesium and silicon in the pseudobinary (α + Mg₂Si) eutectic would see a decrease as the amplitude would rise to the said value. Besides, an increase of the generator amplitude to 15 kV at the fixed pulse frequency of 1 kHz led to a noticeable morphological modification of the pseudobinary eutectic phases, as well as their increased dispersion and a decreased average size of the dendritic cell.

Support for this research was provided under grant by the Russian Science Foundation, Project No. 20-19-00687.

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