Abstract

The recrystallization process in copper subjected to high-rate compression deformation by collapsing a massive cylindrical shell into a cylinder has been studied in this work. Recrystallization occurs in two stages due to the peculiarities of the deformation structure. At the first low-temperature stage, regions with deformation-induced highly-misoriented (over 15 degrees) grains are recrystallized. At the second stage, regions containing deformation-induced cells with low angular boundaries are recrystallized. Recrystallization in copper after loading with a plane shock wave is investigated for comparison. The recrystallization occurs via migration of grain boundaries to form one step.

中文翻译：

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爆炸载荷作用下大体积圆柱壳坍塌过程中高速率变形的铜的加热诱导再结晶

摘要

在这项工作中，已经研究了通过将大体积的圆柱壳塌陷成圆柱体而在高速压缩变形的铜中进行的再结晶过程。由于变形结构的特殊性，再结晶分两个阶段发生。在第一个低温阶段，带有变形引起的高度不定向（超过15度）晶粒的区域会重新结晶。在第二阶段，包含具有低角度边界的形变诱导单元的区域被重结晶。为了比较，研究了平面冲击波加载后铜中的重结晶。重结晶是通过晶界迁移形成一个步骤而发生的。