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Information × Registration Number 0225U003959, (0123U101588) , R & D reports Title Development of theoretical principles and technological modes of production of amorphous and nanocrystalline alloys, polymer composite materials and rolled steel with improved properties popup.stage_title Розробка теоретичних засад та технологічних режимів виготовлення аморфних і нанокристалічних сплавів, полімерних композиційних матеріалів та сталевого прокату з покращеними властивостями Head Kalinina Tetiana V., к.ф.-м.н. Registration Date 22-09-2025 Organization Dniprovsk State Technical University popup.description1 Study of the laws of non-equilibrium crystallization during rapid cooling of melts and heat treatment of metallic glasses (MG), complex studies of the structure and properties of fast-hardening X-ray amorphous alloys and polymer composites of the new generation, as well as improvement of technological regimes for the production of rolled products from continuously cast steel. popup.description2 The report presents the results of a research project aimed at developing the theoretical foundations and technological regimes for the production of amorphous and nanocrystalline alloys, as well as polymer composite materials with enhanced performance properties. The relevance of the work is determined by the need to create new materials for high-tech industries capable of replacing traditional metals, ceramics, or polymers under conditions of intensive mechanical and thermal loads. The first part of the study considers the main methods of rapid solidification (RS) from the liquid state, analyzing the influence of cooling rate and thermal regimes on the phase composition and structure of metallic materials. It is shown that RS enables the formation of metastable states — highly supersaturated solid solutions, new intermetallic phases, and amorphous structures. This opens up the possibility of purposefully controlling the morphology, microstructure, and physico-mechanical properties of rapidly solidified alloys. The features of the formation of binary alloys of the Al–Co and Al–Cr systems obtained by RS were studied, and the feasibility of their use as functional fillers in ultrahigh molecular weight polyethylene (UHMWPE) was substantiated. It was demonstrated that the introduction of 5–20 wt.% of dispersed alloy particles significantly improves the tribological characteristics of the polymer: wear resistance increases by 2–2.8 times, while the intensity of linear wear and the coefficient of friction decrease. At the same time, an increase in the heat resistance and thermophysical characteristics of the composite was observed. The practical significance of the obtained results lies in the development of a new generation of polymer composite materials with improved durability, resistance to abrasive wear, and thermal effects. The developed composites are recommended for use in friction units of agricultural and mining machinery, as well as in transport engineering. Product Description popup.authors Yeromina Kateryna A. Bashev Valerii F. Vakulenko Ihor O. Hubariev Serhii V. Naberezhna Olha O. Sukhomlyn Volodymyr I. Tomina Anna-Mariia V. popup.nrat_date 2025-09-22 Close