电子束辐照硬铝产生热击波及层裂的估算

ESTIMATION OF THE THERMAL SHOCK WAVE AND SPALL OF ALUMINUM ALLOY IRRADIATED BY AN ELECTRON BEAM

本文对LY-12铝受到强流低能相对论电子束辐照时产生的热击波及层裂效应进行了估算。在预估中等能量沉积产生材料的动态响应时必须适当地考虑熔化过程。我们所用的状态方程是GRAY三相状态方程,它对熔化区域中的金属作了详细且在热力学上更为完整的描述。将计算值同实验结果进行比较表明,二者基本上是一致的。

In this paper, we estimate the thermal shock wave and spall effect of LY-12 aluminum exposed to a high-current and low-energy relativistic electron beam. Melting process must be adequately taken into accounted for the material dynamic response calculation in the intermediate energy deposition range. The equation-of-state (EOS) used is GRAY three-phase EOS, which gives a more detailed and complete thermodynamical description of metals in the melting range. The calculatedx results are basically consistent with the experimental results.