Cu-Ni-Al和Cu聚能射流侵彻后钢靶的毁伤特征

Damage Characteristics of Steel Targets Penetrated by Cu-Ni-Al and Cu Shaped Charge Jets

为了对比分析Cu-Ni-Al反应聚能射流和惰性Cu聚能射流对45钢靶的宏观侵彻特性和靶板的微观组织特征,分别进行了Cu-Ni-Al和Cu药型罩的侵彻实验,并利用光学显微镜、扫描电镜、能量色散光谱仪和Vickers显微硬度测量系统对回收钢靶进行表征。实验结果表明:Cu-Ni-Al反应射流对45钢的穿深与Cu射流相比明显降低,但其平均入口孔径提高了33.3%。两种聚能射流侵彻作用下钢靶中均存在残余射流区、白色区(马氏体和奥氏体的混合物)和变形区。与Cu射流相比,Cu-Ni-Al反应射流孔壁残余射流区的硬度值提高了34 MPa,孔壁尾部白色区的硬度值增加了95 MPa,其孔壁头部白色区的硬度值降低了28 MPa。两种聚能射流孔壁尾部白色区的硬度值均高于头部。研究结果可为评估反应材料药型罩聚能装药战斗部的毁伤效应提供一定的参考。

To compare and analyze the macroscopic penetration characteristics and the microstructure characteristics of the 45 steel targets penetrated by Cu-Ni-Al reactive shaped charge jets and inert Cu shaped charge jets,we carried out penetration experiments of the Cu-Ni-Al and Cu shaped charge liner,and used optical microscope(OM),scanning electron microscope(SEM),energy dispersive spectrometer(EDS)and Vickers microhardness measurement system to characterize the recovered steel targets.The experimental results showed that the penetration depth of the Cu-Ni-Al reactive jet on 45 steel was significantly lower than that of the Cu jet,but its average entrance diameter was increased by 33.3%.There was residual jet zone,“white”zone(a mixture of martensite and austenite)and deformation zone in the steel target penetrated by the two shaped charge jets.Compared with the Cu jet,the hardness values of Cu-Ni-Al residual jet zone were increased by 34 MPa,the hardness values of Cu-Ni-Al“white”zone in the tail were increased by 95 MPa,and the hardness values of Cu-Ni-Al“white”zone in the head were reduced by 28 MPa.In“white”zone of target penetrated by two shaped charge jets,the hardness values in the tail were higher than that in the head.The above results can provide a certain reference for evaluating the damage effect of the reactive material liners shaped charge warhead.