【摘要】 本文实验发现具有较大密度和较高速度的93W钨合金长杆模拟弹的穿靶深度反而比密度较小,速度较低的90W钨合金长杆弹的穿靶深度小.针对这一现象,本文从两种材料在侵彻环境下的细观响应特性的差异上给出了有实验根据的合理分析,结论是90W在侵彻环境下较易于形成绝热剪切带,从而在弹头部发生“自锐化”效应所致.更多还原

【Abstract】 It was found in penetration experiments that the penetrating depth of 93W-alloy Long-rod penetrator with higher velocity is lower than that of the lower velocity long-rod penetrator made of 90W-alloy. On the basis of the observation and analysis to the meso-structure responses of both the soft-recovered penetrators, the essential reason founded is that the 90W-alloy is easier to form adiabatic shear bands and then to make the head of penetrator generating self-sharpen effect.更多还原