Over the last one and half decades the constantly growing interest to a problem of rapid solidifying the melted micro-droplets of various materials at their impact with a surface has been marked. This phenomenon is at the basis of many technologies, such as plasma, detonation and flame spraying, arc-spray, spray-casting, micro-atomization of powders, solder-drop-printing in microelectronic, making the microcrystal and amorphous materials, and producing the high-temperature superconductors. The system micro-droplet -substrate is very suitable for a physical materials science in studies of the non-equilibrium phase diagrams of different alloys and composite materials under extreme conditions. Practically speaking we have dealings with independent scientific and technological line of investigation -micrometallurgy of a small volume of melt at its collision with an obstacle surface or, in other words, splats' micro-metallurgy. The paper presented is devoted to a brief review of theoretical, computational and experimental investigations carried out by composite authors during the last decade.

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The properties and failure mechanisms of anisotropic polymer composite materials in configuration of a single bundle of filaments microcomposite reinforced with carbon and aramid fibers under impact and static loading conditions are investigated by impact break method. Various failure mechanisms of the CM affected on their properties under static and impact loading conditions. The destruction processes in dynamically loaded CM are multistage. Failure mechanism is based on the multifilament fiber stretching and stress‐wave propagation through the CM. The processes of multibreaking and crushing of the filaments are imposed on the process of multistage stretching deformation. It led to a sharp decrease of the CM properties on impact as compared with that CM tested under static loading conditions. It has been found out that specific absorbed‐in‐break energy of CFRP and OFRP under impact loading conditions is significantly reduced by a factor of 3.1 and 4.1, respectively, as compared with that under static ones. POLYM. ENG. SCI., 57:693–696, 2017. © 2017 Society of Plastics Engineers