Issues »  Volume 47, Issue 1

Method for Determining the Diffusion and Drift Components of Anomalous Mass Transfer in Metals under External Influences

O. V. Filatov, Y. O. Pavliuk, V. F. Mazanko, S. Ye. Bogdanov, D. S. Gertsriken, Ye. I. Bogdanov, S. P. Vorona

G. V. Kurdyumov Institute for Metal Physics, NAS of Ukraine, 36 Academician Vernadsky Blvd., UA-03142 Kyiv, Ukraine

Received: 11.09.2024; final version - 22.10.2024. Download: PDF

Within the framework of this investigation based on experimental data, the approach to determine the process parameters of anomalous mass transfer in solid state using isotopic technique under external influences is developed. This approach is used to determine the process parameters of mass transfer in high-entropy alloys (HEA) AlFeNiCoCuCr and steel S235 (analogue of steel 3) after electric-spark alloying and subsequent impact treatment. Radioactive 60Co isotope is used as indicator of mass transfer process. As shown in this work using the developed method, the predominant mechanism of mass transfer in condition of electric-spark alloying and mechanical impact is the directed movement of atoms carried away by mobile dislocations in S235 and HEA. Calculating the mean and root-mean-square displacements of atoms, the force acting on each atom and the mobility of 60Со atoms in S235 under mechanical-impact processing are determined. As shown, the Einstein–Smoluchowski equation may be used to determine the atoms mobility under external influences and the process of anomalous mass transfer, if DT to replace by Def.

Key words: anomalous mass transfer, radioactive 60Co isotope, atoms mobility, external influence, high-entropy alloys, steel S235.

URL: https://mfint.imp.kiev.ua/en/abstract/v47/i01/0039.html

DOI: https://doi.org/10.15407/mfint.47.01.0039

PACS: 05.40.Fb, 05.60.Cd, 66.30.-h, 68.35.Fx, 81.05.Bx, 81.70.Bt

Citation: O. V. Filatov, Y. O. Pavliuk, V. F. Mazanko, S. Ye. Bogdanov, D. S. Gertsriken, Ye. I. Bogdanov, and S. P. Vorona, Method for Determining the Diffusion and Drift Components of Anomalous Mass Transfer in Metals under External Influences, Metallofiz. Noveishie Tekhnol., 47, No. 1: 39—55 (2025)

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