Peculiarities of Transition-Zone Formation at Al–Cu Explosion Welding
V. F. Mazanko$^{1}$, P. S. Shlonskyi$^{2}$, O. V. Filatov$^{1}$, S. Ye. Bogdanov$^{1}$, M. O. Pashchin$^{3}$, Ye. I. Bogdanov$^{1}$, M. I. Savchuk$^{1}$, I. V. Ivaschenko$^{4}$, and O. O. Novomlynets$^{5}$
$^{1}$G. V. Kurdyumov Institute for Metal Physics, N.A.S. of Ukraine, 36 Academician Vernadsky Blvd., UA-03142 Kyiv, Ukraine
$^{2}$Huayang Metalworking Technology No. 1 Road, Tieling High-Tech Industrial Zone, Liaoning Province, China, 112611
$^{3}$E. O. Paton Electric Welding Institute, NAS of Ukraine, 11 Kazymyr Malevych Str., UA-03150 Kyiv, Ukraine
$^{4}$National Technical University of Ukraine ‘Igor Sikorsky Kyiv Polytechnic Institute’, 37 Beresteiska Ave., UA-03056 Kyiv, Ukraine
$^{5}$Chernihiv Polytechnic National University, 95 Shevchenko Str., UA-14035 Chernihiv, Ukraine
Received: 06.06.2024; final version - 09.07.2024. Download: PDF
The formation of transition zones during explosive welding of aluminium with copper in vacuum and in air is studied. The distribution of element concentrations is used to determine the coefficient of mutual mass transfer in the undetachable Al–Cu joint. It turns out that the mass transfer of copper into aluminium in the conditions of explosion welding occurs at greater depths compared to the depth of penetration of aluminium into copper. This is explained by the fact that the nature of the penetrating atoms does not have such a strong influence as in conditions of diffusion annealing, and the determining factor is the lattice period, which in aluminium is larger than in copper. Concentration curves are plotted for the Al–Cu interaction zone during explosion welding, in which there are no intermetallic phases corresponding to the equilibrium diagram of state. The coefficient of mutual mass transfer turns out to be several orders of magnitude higher than the hetero-diffusion coefficient of the same elements under diffusion-annealing conditions. The explosion welding is performed using a coaxial scheme by throwing a copper tube on an aluminium rod.
Key words: aluminium, copper, explosion welding, mass transfer, diffusion, interaction zone.
URL: https://mfint.imp.kiev.ua/en/abstract/v46/i10/0975.html
DOI: https://doi.org/10.15407/mfint.46.10.0975
PACS: 06.60.Vz, 61.72.Ff, 66.30.Ny, 68.35.Fx, 68.55.Ln, 81.20.Vj, 81.70.Jb
Citation: V. F. Mazanko, P. S. Shlonskyi, O. V. Filatov$, S. Ye. Bogdanov, M. O. Pashchin, Ye. I. Bogdanov, M. I. Savchuk, I. V. Ivaschenko, and O. O. Novomlynets, Peculiarities of Transition-Zone Formation at Al–Cu Explosion Welding, Metallofiz. Noveishie Tekhnol., 46, No. 10: 975—989 (2024)