Applied by SANS method, we investigated the defects variation in the range of 10nm to 160nm in Al-based and Mg-based alloys after treated by dynamical loading.

• 应用中子小角散射技术研究了镁基和铝基合金受动态冲击加载前后，尺度范围在10nm至160nm内部体缺陷的变化情况。