典型反应性合金冲击释能量及耦合毁伤能力对比

反应性合金是一种高密度超钝感的新型含能材料，在高速撞击下可释放大量化学能，具有与动能耦合毁伤目标的潜力。通过弹道枪驱动非晶合金类、传统合金类和高熵合金类反应性合金样品，以1 500 m/s速度撞击准密闭容器和间隔靶。对比分析了3种样品冲击释能行为和对间隔靶耦合毁伤能力的差异。结果显示：反应性合金样品在高速侵彻靶板后形成的燃烧碎片云对间隔靶兼具动能和化学能毁伤能力；化学能释放效率与样品的静态抗压强度正相关；由于样品所携带的化学能和动能随着燃烧碎片云运动，释放在靶后不同空间处，故对间隔靶的毁伤能力与其总携带能量无关；化学能对耦合毁伤能力的贡献程度主要取决于释能效率。

Comparison of Released Energy and Coupling Damageability of Typical Reactive Alloy under High-speed Impact on Target

Reactive metal is a new type of high-density and ultra-insensitive energetic material, which can release a large amount of chemical energy under the high-speed impact, and has the potential of chemical energy to enhance kinetic energy damage. The reactive metal samples of amorphous alloys, traditional alloys, and high-entropy alloys are driven by a ballistic gun to hit the quasi-closed container and spaced targets at 1 500 m/s. The differences in the impact energy release behaviors and the coupling damageabilities of three samples to the spaced targets were compared and analyzed. The results show that the burning debris cloud formed after the reactive metal sample penetrates the target plate at high speed has both kinetic and chemical energy damageabilities to the spaced target. The chemical energy release efficiency is positively related to the static compressive strength of the sample. Since the chemical energy and kinetic energy carried by the sample move with the burning debris cloud and are released in different spaces behind the target, the damageability to the spaced target has nothing to do with the total energy carried. The contribution of chemical energy to the coupling damageability mainly depends on the energy release efficiency.