W-Ni-Al反应射流成分变化对靶板毁伤 性能影响研究
Study on the Influence of Composition Change of W-Ni-Al Reaction Jet on the Damage Performance of Target Plate
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摘要:为了探究不同成分W-Ni-Al反应射流对45#钢的毁伤性能，采用模压法制备了W含量为50%和70%的W-Ni-Al粉末药型罩并进行静破甲试验。试验结果表明：W含量为50%和70%的W-Ni-Al药型罩射流平均穿深分别为103mm和120mm，相比Ni-Al反应射流穿深分别增加了35.5%和57.9%，且W含量为50%的反应射流在靶板表面形成更多的横向裂纹。光学显微镜观测结果表明：随着射流中Ni-Al含量升高放热量增加，射流横向扩散加剧，射流对靶板反向冲刷作用增强，造成孔壁边缘变形程度增大，提升了射流横向毁伤性能。
Abstract:In order to investigate the damage performance of W-Ni-Al reactive jet with different composition on 45# steel, W-Ni-Al powder liner with W content of 50% and 70% was prepared by mould pressing method, and static armor penetration experiment was carried out. The experimental results show that the average penetration depth of jet with 50% W and 70% W is 103mm and 120mm respectively, which is 35.5% and 57.9% higher than that of Ni-Al reaction jet, and the reaction jet with 50% W content forms more transverse cracks on the target surface. The results of optical microscope observation show that with the increase of Ni-Al content in the jet, the heat release increases, the transverse diffusion of the jet is intensified, and the reverse scouring effect of the jet on the target plate is enhanced, which result in the increase of the deformation degree of the hole wall edge, and the improvement of lateral damage performance.
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