Quantitative determination of impact release energy for TiZrHfX0.3 multicomponent materials in vacuum environment

Abstract

Multicomponent materials have been widely used in the field of national defense due to their excellent mechanical properties and impact energy release characteristics. In order to obtain the effect of trace element and impact velocity on energy release, TiZrHfCu0.3, TiZrHfAl0.3 and TiZrHfNi0.3 multicomponent materials are used as the research object. The response parameters such as perforation diameter and penetration depth, flash radiant temperature, gas overpressure, flame propagation velocity and vessel wall temperature rise induced by multicomponent materials projectile impacting on the target in vacuum environment are measured in a quasi-closed vessel. The deformation energy of target, mixed gas enthalpy in the vessel, flash radiant energy, absorbed energy of quasi-closed vessel wall and injected gas enthalpy are calculated theoretically, respectively. Then the impact energy release is determined quantitatively and compared with the calculating results of the Ames impact energy release model. The results show that the impact release energy of per unit mass projectile increases with the increasing of impact velocity, but the increase amplitude is small. However, the impact energy release capacity from the strongest to the weakest is TiZrHfCu0.3, TiZrHfAl0.3 and TiZrHfNi0.3, respectively. Because the energy loss is not considered in the Ames model, the calculating result of the Ames model is lower than that of this method.