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Information × Registration Number 0215U009419, 0115U004030 , R & D reports Title Investigation of corrosion-adsorbtion aspects of influence of lead melts on durability and degradation of mechanical properties of structural reactory martensitic and austenitic steels popup.stage_title Head Fedirko Viktor, Registration Date 20-01-2016 Organization Karpenko Physico-Mechanical Institute of the National Academy of Science of Ukraine popup.description2 The regularities of the influence of phase-structural state (grain size, surface modification of oxides) steels ferritic (the system Fe-11Cr) and austenitic (the system Fe-18Cr-10Ni) classes on the mechanical properties (ductility, strength, long-term strength) in a lead melt at elevated temperatures. Increasing the size of grains of ferritic steels like austenitic grades and leads to a decrease in their mechanical properties in the temperature range of operation lead coolant (400 ... 600 ° C). As the temperature and duration of the oxidation phase composition of the films due to the intensification of diffusion of chromium in the surface layers of evolving from magnetite to chromium-containing spinel (Fe, Cr) 3O4 with islet formation of chromium oxide Cr2O3 high temperature as well as growth occurs grains - for ferritic steel from 35 ... 40 ... 60 microns to 80 microns and the austenitic steel of 30 ... 35 ... 40 microns to 45 microns. Structurally-phase state of the surface layers of structural steel is one of the determining factors in combating the negative effects of lead in the environment of static mechanical stress and should therefore be taken into account when selecting materials for liquid metal cooled reactors. Product Description popup.authors Краєвський Петро Петрович Кудлак Степан Михайлович Лопушанський Василь Антонович Лук'яненко Олександр Генадійович Погрелюк Ірина Миколаївна Ткачук Олег Васильович Федірко Віктор Миколайович Щепанський Ярослав Степанович Яськів Олег Ігорович popup.nrat_date 2020-04-02 Close