Abstract

Using high-resolution scanning and transmission electron microscopy methods, the morphological and size characteristics of the structural components of the composites synthesized on the basis of aluminum with a graphene microadditive in a commercial aluminum melt under a layer of molten salt are studied. An experiment on the dynamic compression of a composite by the Kolsky method was performed, the evolution of a cast structure during high-rate deformation is studied, and mechanical characteristics in the range of deformation rates έ = 1.8–4.7 × 10³ s^–1 were measured. The dynamic characteristics of the composite were measured under conditions of loading with planar shock waves (έ = 5 × 10⁵ s^–1) for the first time. The dynamic properties of the composite are compared as functions of the graphene content in the aluminum matrix.

中文翻译：

---

石墨烯添加剂对铝结构和性能的影响

摘要

使用高分辨率扫描和透射电子显微镜方法，研究了在商业铝熔液中一层熔融盐下，基于铝与石墨烯微添加剂合成的复合材料的结构成分的形貌和尺寸特征。通过Kolsky方法进行了复合材料的动态压缩实验，研究了高速变形过程中铸件结构的演变，并在变形率范围内对力学特性进行了判断= 1.8–4.7×10 ³ s ^–1被测量。复合材料的动态特性是在平面冲击波载荷作用下测量的（έ= 5×10 ⁵ s ^–1）。将复合材料的动态性能作为铝基体中石墨烯含量的函数进行比较。