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Information × Registration Number 0224U001076, 0123U100105 , R & D reports Title Study of features of structure formation and properties of high-alloy steel 04Х14Т3Р1Ф for nuclear energy pipes during deformation and heat treatments popup.stage_title Head Balakhanova Tetiana V., Кандидат технічних наук Registration Date 16-01-2024 Organization Institute of Ferrous Metallurgy. ZI Nekrasov of the National Academy of Sciences of Ukraine popup.description2 The paper examines the advantages and disadvantages of the main materials used during the disposal of spent nuclear fuel. It has been established that, from the point of view of the economic component, the most rational material for storing and transporting radioactive waste is stainless high-chromium steel of the ferritic grade 04Cr14Ti3B1V with an increased content of boron, which, in addition to absorption capabilities, is characterized by other properties that are mandatory for the specified type of product. In the course of research, a metallographic method of surface preparation of microgrinds made of steel 04Cr14Ti3B1V was developed, which allows the most reliable detection of structural components using the method of optical microscopy. It was established that at all stages of the production of hexagonal pipes (for protective containers) a heterogeneous structure of steel 04Cr14Ti3B1V is formed. At the same time, the specified inhomogeneity of the structure is observed both at the micro and macro levels, which is obviously related to the peculiarities of the production of the original ingot. According to the results of X-ray structural analysis, the presence of Fe1.1Cr0.9B0.9 and Fe2Ti phases, which negatively affect the plasticity indicators, was found in samples of hot-rolled pipes made of 04Cr14Ti3B1V steel. It was established that the method of cold reprofiling of pipes from steels with low plasticity is not technological, which requires the use of either a method of warm reprofiling (at a temperature of ~ 350 °C) or preliminary heat treatment (annealing at a temperature of 700–850 °C). The research carried out during the execution of the work corresponds to high international standards.  Product Description popup.authors Balakhanova Tetiana Baranovska Olena Borysenko Andrii Yu. Golubenko Tеtyana М. Hubenko Svitlana І. Oliinyk Eduard Parusov Eduard V. Parusov Oleh V. Sivak Hanna I Chuiko Igor popup.nrat_date 2024-01-16 Close