电铸与旋压药型罩微观组织及织构的研究

将透射电镜 (TEM )和电子背散射衍射 (EBSD)技术应用到药型罩的微观组织及织构的分析中 ,研究不同的成型工艺对药型罩的微观组织及织构的影响 ,结果表明 :电铸药型罩晶粒细小 ,且晶粒沿罩的厚度方向有明显择优取向 ,即存在平行于晶粒生长方向的丝织构 ;而旋压药型罩晶粒粗大 ,晶粒的晶体取向大体上呈随机分布 ,仅有微弱的形变织构 ,且这种形变织构经放置一段时间后就消失了 ,即有时效现象。这一结果为建立加工工艺与组织之间关系及重新认识旋压罩中的织构存在情况提供了一定的实验依据

Study of microstructures and textures of electroformed and rotary - pressed shaped charge liners

Transmission electron microscope (TEM)and electron backscatter diffraction observations were carried out for studying the effects of different processings on microstructures and textures of shaped charge liners.The observations have revealed that the electroformed shaped charge liner has fine grains and the grains were found to have a preferential orientation distribution along the growth direction .And the rotary-pressed shaped charge liner has coarse grains and the distribution of the grains are basically random,there are only weak deformation textures,and these deformation textures exist for a short time .The research provide some experimental results for establishing the relation between the processing technologies and the microstructures as well as realizing the existence of textures in rotary-pressed shaped charge liner.