Sun Miao, Li Chao, Zhang Xuguang, Hu Xiaomin, Hu Xiaoyan, Liu Yingbin
School of Environment and Safety Engineering, North University of China, Taiyuan 030051, China.
Beijing Special Vehicle Institute, Beijing 100000, China.
Materials (Basel). 2018 Nov 13;11(11):2267. doi: 10.3390/ma11112267.
Energetic structural materials (ESMs) have many potential military applications due to their unique functions. In this work, the reactivity and penetration performance of ESMs have been examined as a shaped charge liner material. The penetration experiments of nickel-aluminum (Ni-Al) and copper-nickel-aluminum (Cu-Ni-Al)-shaped charge liners (SCLs) have been designed and fired into 45# steel. The targets were recovered and analyzed by optical microscopy, electron microscopy, energy dispersive spectroscopy, and Vickers microhardness measurements. The head and tail of the crater walls penetrated by two reactive jets demonstrated unique microstructures. The jet rapidly decayed with the penetration process, but the "white" zone (a mixture of martensite and austenite) was more prominent in the tail, and the microhardness of the tail was much higher than that of the head. The results showed the continued exotherm of Ni-Al reactive jet when it was fired into the target. The addition of Cu reduced the exotherm of Ni-Al, Cu could not only increase the average crater size, but also raise the average penetration depth by 42%. These results offer valuable insight for utilizing ESM as shaped charge liner materials.
由于其独特的功能，高能结构材料（ESMs）具有许多潜在的军事应用。在这项工作中，已经研究了ESMs作为聚能装药药型罩材料的反应性和侵彻性能。设计了镍铝（Ni-Al）和铜镍铝（Cu-Ni-Al）聚能装药药型罩（SCLs）的侵彻实验，并向45#钢发射。回收靶材并通过光学显微镜、电子显微镜、能谱和维氏显微硬度测量进行分析。由两个反应射流侵彻的弹坑壁的头部和尾部呈现出独特的微观结构。射流在侵彻过程中迅速衰减，但“白色”区域（马氏体和奥氏体的混合物）在尾部更为突出，并且尾部的显微硬度远高于头部。结果表明，Ni-Al反应射流撞击靶材时持续放热。Cu的加入降低了Ni-Al的放热，Cu不仅可以增加平均弹坑尺寸，还能使平均侵彻深度提高42%。这些结果为将ESMs用作聚能装药药型罩材料提供了有价值的见解。
