ABSTRACT
Laboratory samples were used for welding: tantalum and copper, the remaining dimensions are tens of mm. Extremely useful was the use of different welding modes for the same copper–tantalum pair. Since the Al and Ta metals have mutual solubility, as a result of explosive welding, the formation of a chemical compound should occur in the contact area of the metals. Comparison of copper–tantalum and aluminium–tantalum welds allows us to clarify the question of the influence of the mutual solubility of the starting metals on processes of the formation of welded joint as fragmentation, the formation of cusps and local melting zones. Particle scattering is observed both for metal–metal and metal–intermetallic welds, both in the presence and in the absence of mutual solubility, regardless of the shape of the interface. The initial metals are easily distinguishable, thanks to the highly visible globules in the aluminide.
