Comparative Study of the Penetration Characteristics of Ni-Al and Pure Cu Shaped Charge Liners

• Autorzy: Liu Yingbin , Zhang Chaoxia , Hu Xiaoyan , Yang Li , Sun Miao , Zhang Zeng , Yuan Lei

Identyfikatory

DOI

10.22211/cejem/139155

• Języki publikacji: EN

Abstrakty

EN

In order to investigate the correlation between the reactivity of Ni-Al and micro-structural differences in the crater walls, penetration experiments were performed with Ni-Al and pure Cu shaped charge liners (SCLs). The experimental results showed that the average penetration depth of Cu jets is 2.3 times that of Ni-Al jets, but the crater entrance diameter of Ni-Al jets is larger by 26.6%. The microstructure of the recovered targets was characterized using optical microscopy, scanning electron microscopy, energy dispersive spectroscopy, and a Vickers micro-hardness system. The Ni-Al “white” band was thicker than that of Cu because it releases a lot of heat. The micro-hardness test showed that the “white” band had a relatively high hardness, and the “white” band hardness in the tail was more significant than that in the head. However, the micro-structural evolution of the crater walls is related to the reactivity of Ni-Al, but is also related to other factors. Combined with the macro penetration results and the evolution of the micro-structure of the crater walls, the “white” band can absorb impact energy more strongly and weaken the jet breaking ability or armour protection ability.These results can provide more valuable reference for designing shaped charge warheads and protection structures.

Słowa kluczowe

EN

shaped charge liners; Ni-Al; penetration experiments; white band; microstructure analysis

• Czasopismo: Central European Journal of Energetic Materials
• Rocznik: 2021
• Tom: Vol. 18, no. 2
• Strony: 199--222
• Opis fizyczny: Bibliogr. 31 poz., rys., tab.

Twórcy

autor

Liu Yingbin

• School of Environment and Safety Engineering, North University of China, Taiyuan 030051, China

autor

Zhang Chaoxia

• School of Environment and Safety Engineering, North University of China, Taiyuan 030051, China

autor

Hu Xiaoyan

• School of Environment and Safety Engineering, North University of China, Taiyuan 030051, China

autor

Yang Li

• Military Products Research Institute, Shanxi Jiangyang Chemical Co. Ltd., Taiyuan 030051, China

autor

Sun Miao

• Hypervelocity Impact Research Center, Harbin Institute of Technology, Harbin 150080, China

autor

Zhang Zeng

• School of Environment and Safety Engineering, North University of China, Taiyuan 030051, China

autor

Yuan Lei

• Beijing Special Vehicle Research Institute, Beijing 100072, China

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