Перевод названия: GETTING LIGATURES Al-Ti-Nb USING MECHANICAL ACTIVATION
Тип публикации: доклад, тезисы доклада, статья из сборника материалов конференций
Конференция: XXV КОНФЕРЕНЦИЯ «АЛЮМИНИЙ СИБИРИ»; XV КОНФЕРЕНЦИЯ «ЗОЛОТО СИБИРИ»; XIII КОНФЕРЕНЦИЯ «МЕТАЛЛУРГИЯ ЦВЕТНЫХ, РЕДКИХ И БЛАГОРОДНЫХ МЕТАЛЛОВ »; Красноярск; Красноярск
Год издания: 2019
Аннотация: The weight of the engine itself is reduced by the use of more structural materials. Literature review showed that intermetallic alloys of Al -Ti system are more promising materials for the new generation en-gines. In Russia, there are currently no alloys of this class, so it is necessary to synthesize new intermetallic alloys of thПоказать полностьюe Al-Ti system. It is possible to increase the ductility of these alloys at room temperature in the preparation of alloys with a certain structure. Such areas are considered in triple diagrams, for example, the state diagram Ti-Al-Nb at a temperature of 1000 ° C. Aluminum is the main alloying element for titanium and affects the properties of all titanium alloys. The most important properties of interest for these purposes are: high oxidation resistance, low creep, durability, good thermal conductivity and low cost. the addition of elements such as Nb improves creep resistance as well as the ductility of TiAl alloys in tension. In the Ti - Al - Nb system, the eutectic temperature is in the temperature range of 1923 K to 1273 K. The paper presents the latest achievements in the field of materials science of a new class of alloys, on the basis of which it is possible to further expand the scope of application of materials and allow to respond flexibly to the needs of the industry to create a wide class of products for a variety of operating conditions, to connect high-temperature elements in an alloy by available methods, to obtain a ligature from Ti - Al - Nb metal chips. The use of mechanical activation of chips, which will allow, by chipping crystals, the formation and introduction of defects to increase the reactivity of chip elements, and improve the mechanical properties of modified aluminum casting alloys. Mechanical activation (MA) of the chips was carried out in the planetary mill FRITSCH 400 of periodic action PM 400. The mixture after mechanical activation was fused with aluminum chips and other components of the specified alloy at a temperature of 1100 °C in a laboratory furnace and poured into molds for ingots. Homogenizing annealing was carried out to eliminate the effects of non-equilibrium crystallization, and then the samples were machined for mechanical tests. Conducted experiments to determine the microstructure. Compared to the alloy witness. The microstructure of the alloy under study corresponds to the structure of the alloy-witness sample. The connection of high-temperature elements in the alloy has occurred. We obtained a ligature from Ti - Al - Nb metal shavings.
Журнал: ЦВЕТНЫЕ МЕТАЛЛЫ И МИНЕРАЛЫ - 2019
Номера страниц: 393-398
Издатель: Общество с ограниченной ответственностью "Научно-инновационный центр"