【摘要】 对钢—钢爆炸复合板进行退火试验，发现其中的飞线（ 绝热剪切线） 组织在一定的工艺下退火后会自行消失，但由其发展成的裂纹不会消失，经过论证指出：这种飞线是一种塑性变形线和裂纹源，同时它是在爆炸载荷下金属中出现的一种特殊的塑性变形机制。更多还原

【Abstract】 Zheng Yuanmou Huang Rongguang (New Technology Application Research Institute of Heshan City of Guangdong Province) Chen Shihong (Navigational Affair Management Administration of Guangzhou City)Synopsis In the annealing tests on steel-steel explosive composite sheet it is found that the structure of fly line(absolute thermal shearing line) automatically faded out after annealing in a specific processing conditions Never the less its resultant crackings could not be removed.It is concluded through discussions that this kind of fly line is a plastic deformation line and the primary cause to the cracking.It is also a special plastic deformation mechanism which occurs in the metal under the explosive load.更多还原