Interfacial surface relief in explosive welding of homogeneous materials

Changes of the microstructure of the interface in intensification of the explosion welding conditions for the copper - cupronickel alloy, simulating the copper-copper homogeneous pair are investigated. Typical wavy structures were produced at the interface. The results were compared with the special...

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Bibliographic Details
Published in:Welding international 2018-11, Vol.32 (11), p.714-718
Main Authors: Pushkin, M. S., Inozemtseva, A. V., Greenberg, B. A., Patselov, A. M., Ivanov, M. A., Slautin, O. V., Besshaposhnikov, Yu. P.
Format: Article
Language:English
Subjects:
Copper
Cupronickel
cusps
Explosive welding
interface
Interfaces
local melted zones
quasiwave interface
Solid phases
Titanium aluminides
Titanium base alloys
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Summary:Changes of the microstructure of the interface in intensification of the explosion welding conditions for the copper - cupronickel alloy, simulating the copper-copper homogeneous pair are investigated. Typical wavy structures were produced at the interface. The results were compared with the special features of the relief of joints such as Cu-Ta, Cu-Ti and titanium-orthorhombic titanium aluminide. Heterogeneities were found at the interface: projections, local melting zones, groups of projections, leading to imperfect interfaces, branching of the interface, intersection and convergence of the bands. A quasi-wave surface was found in the vicinity of the flat interface (slightly above it) which contains sections of bands and almost circular islands, away from the bands. Large unfinished rotated areas (macro-rotations) were found in the solid phase.
ISSN:0950-7116
1754-2138
DOI:10.1080/09507116.2018.1443881