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

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