Registration Number
0215U006225,
0114U004925
, R & D reports
Title
" Development of the technology for manufacturing of reactor steels strengthened by nanosize oxides precipitations and functional ceramics with high radiation stability and improved physical and mechanical properties"
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Head
Tikhonovsky Mikhail Andreyevich, Кандидат фізико-математичних наук
Registration Date
16-03-2015
Organization
National Science Center "Kharkiv Institute of Physics and Technology
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We propose a new approach to making of radiation-resistant materials based on the use of so-called high-entropy alloys. It was obtained high-entropy five component alloy of iron, nickel, manganese, chromium and cobalt and studied its deformation mechanisms and mechanical properties. Determined the character of the influence of the morphological features of zirconia oxide nanopowders on the structure and properties of materials made by consolidation of oxide powder mixtures.. The features of mechanical alloying austenitic steel 08H18N10T by nanoscale particles of oxide system Y2O3 - ZrO2 different composition were investigation. It was found that in steel strips after the final heat treatment there is the austenitic matrix phase and the density of complex oxides precipitates varies 1,7 ... 7,3 * 1015 cm-3 with an average size of about 10 nm. The highest density of precipitates with the slightest amount of average and better uniformity of their distribution by volume was found in samples doped by nanooxides composition 80mol.% Y2O3 - 20 mol.% ZrO2. The strength of this steel significantly exceeded the initial steel, especially at high temperatures (700 ° C), where conventional yield stress of ODS steel is 2.3 times higher than the original steel 08Cr18Ni10Ti.
Product Description
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Єфімов О.
Андрієвська Н.
Бовда О.
Бородін О.
Брик В.
Василенко Р.
Великодний О.
Воєводін В.
Кісляк І.
Кальченко О.
Кондратов О.
Костін О.
Мельніченко В.
Онищенко Л.
Рудичева Т.
Старостенко С.
Стоєв П.
Сторожілов Є.
Тихоновський М.
Шевцов А.
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2020-04-02
