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Information × Registration Number 0221U102347, 0118U000180 , R & D reports Title Investigation of physical and metallurgical factors affecting the structure and properties of welded joints of new cavitation-resistant steels, development of welding technology for critical units of hydro turbines for HPPS and HPPS popup.stage_title Head Tsaruk Anatoly K., Registration Date 01-02-2021 Organization E.O.Paton Elektric Welding Institute National Academy of scinces of Ukraine popup.description2  Information on the phase composition of the weld metal and the zone of thermal influence of low-carbon high-chromium martensitic steels has been studied and developed. The influence of physical and metallurgical welding processes on the formation of reverse and manschente austenite, δ-ferrite, residual and tempered martensite has been studied - scientifically substantiated provisions and technological measures have been developed to increase the resistance of welded joints against the formation of cold cracks, significantly reduce the temperature of pre- and associated heating and offer economic parameters for post-welding tempering of welded joints of cavitation-resistant martensitic steels - created oxyfluoride coating of electrodes which limits the carbon content in the weld metal to 0.02% and the content of diffusion hydrogen to 3 cm3 / 100g of metal - the standard technology of manual and mechanized welding of thick-walled joints of steel 03Х13Н4 which is tested and certified by JSC "Turboatom" and is included in the standard documentation for production of components is developed Product Description popup.authors Yelagin Valery P Gavrik Andriy R Zakharov Leonid S Skulskyi Valentyn Yu. popup.nrat_date 2021-02-01 Close