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Information × Registration Number 0223U003922, 0121U110426 , R & D reports Title Development of nanostructured inoculants for the formation of fine dispersed metal structure of welds metal of structural steels and light alloys popup.stage_title Head Sizonenko Olha M., Доктор технічних наук Registration Date 21-07-2023 Organization Institute of Impulse Processes and Technologies National Academy of Sciences of Ukraine popup.description2 The object of research is titanium powder and a mixture of 85% Ti + 15% Al. Research methods – mathematical modeling, physical experiment, registration of transient electrical processes, methods of optical and electron microscopy, X-ray diffractometry. It was found that the result of high-voltage electric discharge (HVED) processing of elementary Ti powder in a hydrocarbon liquid (ethyl alcohol, kerosene) is grinding of powder to sizes of 3.5 μm and less, additional formation of dispersed TiC carbide, quantity of which increases from 19 to 32% with the growth of the specific processing energy in the range of 10 – 40 MJ/kg, and the absence of free carbon impurities. HVED treatment of a mixture of powders 85% Ti + 15% Al in kerosene with realization of volume-distributed multi-spark discharge is the most effective from the dispersion point of view, and the least effective was HVED processing with the implementation of a spark discharge, although both regimes are equivalent on the efficiency of the synthesis of additional carbide of the TiC phase, the amount of which doubles as the specific processing energy increases from 10 to 20 MJ/kg. Techniques of obtainment of nanostructured modifiers for modifying the structure of welds in aluminum alloys from from processed Ti – C and Ti – Al – C powders have been worked out Product Description popup.authors Lypian Yevhen V. Prystash Mykola S. Sizonenko Olha Mykolaivna Taftai Eduard I. Torpakov Andrii S. Trehub Volodimir O. popup.nrat_date 2023-07-21 Close