Explosive cladding is a non-conventional, solid-phase bonding technique in which
bonding between two plates is produced by their high velocity collision induced by the use of
explosives. Attempts were made to explosive clad Titanium-Stainless steel (SS 304 L) plates (3.5
and 3.0 mm thick respectively). The experiments were designed to analyze the bonding interface
parallel to the detonation direction. The presence of intermetallics, caused by the melting at the
interface due to kinetic energy dissipation, was observed in some locations. The process parameters
of the explosive welding of Titanium-Stainless steel combination are defined using the
microstructural observations, microhardness at the interface, the results of X-ray diffraction study.
A weldability window is also constructed for explosive welding of Ti /Ss.
The paper deals with detailed studies on the bond zone morphology of Cu / Ss, Br / Ss, Al / Ss weld combinations of explosive welds. The study becomes significant in view of the importance and wide applicability of these materials in bimetal industry. Explosive welding is a high-energy rate fabrication technique and is increasingly employed to provide sound metallurgical bonding between similar and dissimilar metals with widely varied properties. In this study for the same explosive loading conditions, the different types of bonds obtainable at the interface for three combinations of materials have been investigated. The bond zones showed characteristic features, typical of the explosive welding process. Complex patterns of plastic flow and formation of solidified melt areas were revealed at the interface.
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