【摘要】 描述了用于激光冲击强化中的激光驱动冲击波的产生、测量及在材料中的传播特性。讨论了激光功率密度的变化对冲击波峰值的影响。并对水作约束层时产生的等离子体环现象进行了解释。最后讨论了激光波长和脉冲宽度的变化对冲击波的峰值和持续时间的影响。更多还原

【Abstract】 We described the generation, measurement of the shock wave used in laser shock processing and its propagation in the target. The changes of peak pressure depending on the laser power density were studied. The generation of plasma ring at the surface of the target in the water-confinement was explained. The influence of the laser wavelength and pulse duration upon the maximum pressure and the pressure duration were discussed.更多还原