Combined theoretical and experimental study of Fe-Al-based nanocomposites
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F18%3A00108091" target="_blank" >RIV/00216224:14310/18:00108091 - isvavai.cz</a>
Výsledek na webu
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DOI - Digital Object Identifier
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Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Combined theoretical and experimental study of Fe-Al-based nanocomposites
Popis výsledku v původním jazyce
Fe-Al-based ferritic superalloy nanocomposites containing sub-micron cuboids of intermetallic phases coherently embedded into a disordered Fe-Al solid solution are intensively studied as candidate materials for high-temperature applications. We focused on Fe-Al-based superalloys containing Ti and Co as ternary elements, as well as Fe-Al binary nanocomposites. The transmission electron microscopy (TEM) revealed a superalloy nano-structure in these materials and the energydispersive X-ray (EDX) technique detected the composition of individual phases. Subsequently, quantum-mechanical calculations were used to determine thermodynamic, elastic and magnetic properties of constituting phases. In particular, the predicted significant differences in the elastic response of different phases were confirmed also experimentally by room-temperature quasistatic nano-/microindentation and nano-scale dynamic mechanical analysis (nanoDMA). Regarding high-temperature macro-scale measurements, small-punch testing was performed and showed improved creep properties of the studied materials when compared with binary Fe-Al.
Název v anglickém jazyce
Combined theoretical and experimental study of Fe-Al-based nanocomposites
Popis výsledku anglicky
Fe-Al-based ferritic superalloy nanocomposites containing sub-micron cuboids of intermetallic phases coherently embedded into a disordered Fe-Al solid solution are intensively studied as candidate materials for high-temperature applications. We focused on Fe-Al-based superalloys containing Ti and Co as ternary elements, as well as Fe-Al binary nanocomposites. The transmission electron microscopy (TEM) revealed a superalloy nano-structure in these materials and the energydispersive X-ray (EDX) technique detected the composition of individual phases. Subsequently, quantum-mechanical calculations were used to determine thermodynamic, elastic and magnetic properties of constituting phases. In particular, the predicted significant differences in the elastic response of different phases were confirmed also experimentally by room-temperature quasistatic nano-/microindentation and nano-scale dynamic mechanical analysis (nanoDMA). Regarding high-temperature macro-scale measurements, small-punch testing was performed and showed improved creep properties of the studied materials when compared with binary Fe-Al.
Klasifikace
Druh
O - Ostatní výsledky
CEP obor
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OECD FORD obor
10302 - Condensed matter physics (including formerly solid state physics, supercond.)
Návaznosti výsledku
Projekt
<a href="/cs/project/GA17-22139S" target="_blank" >GA17-22139S: Teorií vedený vývoj nových superslitin na bázi Fe-Al</a><br>
Návaznosti
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Ostatní
Rok uplatnění
2018
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů