EXPLOSIVE FORMING OF REFRACTORY METALS
CHROMALLOY CORP WHITE PLAINS N Y
Pagination or Media Count:
Explosive forming of Mo and Mo-0.5Ti alloy develops greater elongation than can be obtained by conventional forming methods. The formability of W was enhanced by increasing the strain rate, a larger percentage elongation would be obtained by the use of explosives with higher detonation velocities. Arc cast Mo-0.5Ti alloy, in contrast to pure Mo and Mo alloy produced by powder metallurgy, had improved formability when the strain rate was increased. Both the Mo and Mo-0.5Ti alloy were very susceptible to the notch effect and scratches and scribe lines must be avoided in areas where elongation of the metal is required. There was no significant variation in the hardness or microstructure between regions of slight and maximum deformation fracture. Inclusions and pre-laminations were observed in some of the sheet materials.