KINETIC ENERGY DISSIPATION IN TI-SS EXPLOSIVE CLADDING WITH MULTI LOADING RATIOS

Abstract

Explosive cladding is a metal cladding technique, wherein restricted detonationimpinges two or more metals to fuse together. On detonation, the chemical energy stored in thechemical explosive is converted instantaneously into kinetic energy, forcing the flyer plate toimpinge obliquely with the base plate to craft a metallurgically strong bond. The kinetic energyavailable at the interface characterizes the interface microstructure and mechanical properties ofexplosive clad which depends on process parameters viz. explosive loading ratio, standoff distanceand preset angle. Titanium-stainless steel 304L plates are explosively cladded with multi loadingratios, stand off distance and preset angle. Formation of smooth wavy interface is observed atlower explosive mass while formation of intermetallic compounds is observed at higher energeticconditions. Amplitude and wavelength of the interfacial waves are directly proportional to kineticenergy lost at the interface. The increase in mechanical strength of the explosive clads is alsoreported.