不同装甲靶板价电子结构对钨合金穿甲弹变形特征的影响  

Effect of Valence Electron Structures of Different Targets on Deformations of Tungsten Alloy Penetrators

作　　者：李金泉[1,2] 黄德武[1] 王敏杰[2] 

机构地区：[1]沈阳理工大学,沈阳110168 [2]大连理工大学,辽宁大连116024

出　　处：《材料工程》2010年第7期59-63,共5页Journal of Materials Engineering

摘　　要：使用某小口径弹道炮,发射次口径脱壳尾翼稳定钨合金穿甲弹,分别侵彻45钢及30CrMnMo钢靶板,发现残余弹体微观结构有明显不同。说明钨合金残余弹体的破坏特征与靶板性能有关。运用固体与分子经验电子理论(EET)对两种靶板的价电子结构进行了分析。发现对于45钢靶板,由于C-Fe原子结合较弱,受冲击后对弹体产生的反作用力小,使残余弹体不产生剪切变形,头部的破坏特征为晶粒破碎及沿垂直侵彻方向的变形,宏观上表现为典型的"蘑菇头"状;对于30CrMnMo钢靶板,由于C-Mo原子间的强烈结合,受冲击后对残余弹体产生很强的反作用力,使钨合金残余弹体头部产生剪切破坏,具有一定程度的"自锐化效应"。45steel targets and 30CrMnMo steel targets were penetrated respectively to analyze different microstructure characteristic of residual projectiles by launching small diameter 93W projectiles.It is shown that deformations of residual projectiles are related to performance of targets.The valence electron structures of the two kinds of targets are analyzed according to the EET（the Empirical Electron Theory of solids and molecules）.There is small force on penetrators after penetrating 45 steel targets because of weak C-Fe bond,so grains on the heads of residual projectiles were broken up and the heads of residual projectiles that are just like ＂mushroom head＂ were not destroyed by adiabatic shear.Powerful force was exerted on residual projectiles after penetrating 30CrMnMo steel targets because of strong C-Mo bond,so the heads of 93W residual projectiles were destroyed by adiabatic shear and had ＂self-sharpening＂ effect.

关 键 词：绝热剪切 残余弹体 原子键 价电子结构 

分 类 号：TJ012.4[兵器科学与技术—兵器发射理论与技术]