Nanoscale Products in Processes of Formation of Connection of Metal Surfaces During Pressure Welding in the Environment of Hydrocarbon Substances

A. V. Jartovsky$^{1}$, V. Manevich$^{2}$, I. Lapsker$^{3}$

$^{1}$Donbass State Engineering Academy, 72 Akademichna Str., UA-84313 Kramatorsk, Ukraine
$^{2}$‘Top Iso Engineering Ltd.’, Kannot Industrial Zone, 20 Ha-Yarok Str., Holon, Israel
$^{3}$Technological Institute, 52 Golomb, Holon, Israel

Received: 05.01.2020; final version - 10.05.2021. Download: PDF

A role of dispersed particles and carbon nanoformations in the process of interaction of joined surfaces during pressure welding using a layer of hydrocarbon substances is experimentally studied. As found, in the space between the joined surfaces during an electric explosion, a new structure with high electrical conductivity is formed as a result of chemical reactions. It exists for a short period of time and decomposes under the influence of heating by passing electric current. Using the methods of electron and optical microscopy, the structure of nanoproducts formed between the joined surfaces is studied. As experimentally established, the carbon nanotubes are an intermediate structure. As shown, the electric explosive and electromagnetic phenomena in the welded joint accompanying this process activate the diffusion ability of the joined surfaces. The process is carried out at temperatures lower than melting temperatures of the welded materials.

Key words: pressure welding, hydrocarbon substances, electric explosion, nanotubes, diffusion, electric current.



PACS: 62.23.St, 62.50.Ef, 81.05.Bx, 81.05.U-, 81.07.De, 81.20.Vj

Citation: A. V. Jartovsky, V. Manevich, and I. Lapsker, Nanoscale Products in Processes of Formation of Connection of Metal Surfaces During Pressure Welding in the Environment of Hydrocarbon Substances, Metallofiz. Noveishie Tekhnol., 43, No. 9: 1195—1206 (2021) (in Ukrainian)

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