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$^{5}$
$^{1}$Институт металлофизики им. Г. В. Курдюмова НАН Украины, бульв. Академика Вернадского, 36, 03142 Киев, Украина
$^{2}$Технология металообработки Хуаян №1 Дорога, высокотехнологическая промышленная зона Тилинг, провинция Ляонин, Китай, 112611
$^{3}$Институт электросварки им. Е. О. Патона НАН Украины, ул. Казимира Малевича, 11, 03150 Киев, Украина
$^{4}$Национальный технический университет Украины «Киевский политехнический институт имени Игоря Сикорского», просп. Берестейский, 37, 03056 Киев, Украина
$^{5}$Национальный университет “Черниговская политехника”, ул. Шевченка, 95, 14035 Чернигов, Украина
Получена: 06.06.2024; окончательный вариант - 09.07.2024. Скачать: 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.
Ключевые слова: aluminium, copper, explosion welding, mass transfer, diffusion, interaction zone.
URL: https://mfint.imp.kiev.ua/ru/abstract/v46/i10/0975.html
PACS: 06.60.Vz, 61.72.Ff, 66.30.Ny, 68.35.Fx, 68.55.Ln, 81.20.Vj, 81.70.Jb