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首页> 外文会议>2006 BIMW >Microstructure Inhomogeneities in 2519A Aluminum Plate Penetrated by an Incendiary Projectile
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Microstructure Inhomogeneities in 2519A Aluminum Plate Penetrated by an Incendiary Projectile

机译：燃烧弹侵彻的2519A铝板的微观结构不均匀性

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2519A aluminum plate was shot obliquely by an incendiary projectile with the diameter of 7.62mm at impact velocity of 818m/s. The penetration inhomogeneities of the crater of 2519A aluminum target plate were investigated with optical microscopy (OM), scanning electron microscopy (SEM). Melted substance, a mixture of the target material and the projectile was found at the interface of target and projectile. Different microstructural characteristics were observed along the crater depth. Grains were elongated near the entrance area, while severely kinked grains and adiabatic shear bands were present in the middle region, and microbands, as well as abnormal grown grains, appeared at the crater bottom. The failure form of target is mainly ductile expanding.
机译：2519A铝板被直径为7.62mm的燃烧弹以818m / s的冲击速度斜射。用光学显微镜（OM），扫描电子显微镜（SEM）研究了2519A铝靶板弹坑的穿透不均匀性。在目标和弹丸的界面处发现了熔化的物质，即目标物质和弹丸的混合物。沿火山口深度观察到不同的微观结构特征。谷粒在入口区域附近拉长，而在中部区域则存在严重的扭结谷粒和绝热剪切带，并且在火山口底部出现了微带以及异常长大的谷粒。目标的失效形式主要是延性膨胀。

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