Registration Number
0223U002872,
(0122U001390)
, R & D reports
Title
Regularities of phase, texture, structure formation of electrocrystallized alloys and their use for creation of textured nanomaterials for military use.
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Виявлення закономірностей утворення сигма-фази та мю-фази в хромових та кобальтових сплавах при їх електрокристалізації.
Head
Hirin Oleh B., Доктор технічних наук
Registration Date
15-03-2023
Organization
Ukrainian State University of Chemical Technology
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To establish the previously unknown phenomenon of electrochemical phase, texture and structure formation of metals / alloys via a supercooled liquid state stage and to determine on this basis the initial data for the creation of electrocrystallized textured nanomaterials in the form of chromium alloy coatings.
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The object of research is the regularities of phase, texture, and structure formation of electrocrystallized alloys. The purpose of the first stage of the work is to identify the regularities of the sigma-phase and mu-phase formation in chromium and cobalt alloys during their electrocrystallization and the practical use of the established regularities for the creation of advanced materials for military purposes. The use of developed materials for military equipment will contribute to strengthening the defense capability and national security of the state. Research methods are X-ray phase analysis, mathematical modeling, test for abrasive impact wear. As a result of the implementation of the first (intermediate) stage of scientific research work, the following scientific effects were established: the effect of the formation of intermetallics in the form of a sigma phase between transition metal elements that have similar atomic sizes during the electrocrystallization of chromium alloys; the effect of the formation of intermetallics in the form of mu-phase in the intermediate layer between the electrocrystallized cobalt alloy and the molybdenum cathode with a significant difference in the atomic radii of the interacting metal elements. Scientific and technical products were created: "Regularities of formation of sigma phase and mu phase in chromium and cobalt alloys during their electrocrystallization", "Concept of electrochemical phase, texture and structure formation of metals/alloys. Part 1", "Mathematical model of phase formation of electrocrystallized metals and alloys", "Method of obtaining multilayer coatings". Field of use of work results: C 25.61 – metal processing and metal coating.
Product Description
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Oleg B. Girin
Ovcharenko Volodymyr I.
Igor L. Kovalenko
Trofimenko Vitaliy V.
Kovalyov Stanislav V.
Korolyanchuk Dmytro G.
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2023-03-15
