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Penetration Performance of Ultrafine-Grained Copper Shaped Charge Liner

SUNG HO LEE, SEONG LEE, SEONGHO YANG, HAKJUN KIM, LEE JU PARK

Abstract


It is known that the fine grain size of a copper shaped charge liner improves penetration performance. To obtain fine microstructure in copper, recrystallization after plastic deformation is usually used. In this study, ultrafine grain of copper was obtained by a severe plastic deformation technique called equal channel angular pressing (ECAP). Conical liners were fabricated from ECAP processed billets. Mechanical properties and penetration performances of ultrafine-grained copper shaped charge liners have been compared with those of conventionally forged and recrystallized ones.


DOI
10.12783/ballistics2017/17021

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