Fe-Al-Si-X based intermetallic alloys

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24210%2F25%3A00014046" target="_blank" >RIV/46747885:24210/25:00014046 - isvavai.cz</a>

Výsledek na webu

<a href="https://intermetallics-conference.de/fileadmin/im/2025/docs/Proceedings/IM2025_Proceedings.pdf" target="_blank" >https://intermetallics-conference.de/fileadmin/im/2025/docs/Proceedings/IM2025_Proceedings.pdf</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Fe-Al-Si-X based intermetallic alloys

Popis výsledku v původním jazyce

Fe–Al–Si–X intermetallic alloys are promising candidates for high-temperature structural applications. This study investigates Fe–28Al–Si alloys microalloyed with Mo, Ti, B, V, W, and Nb, analyzed in the as-cast state and after heat treatment at 800 °C/100 h. Microstructural characterization revealed distinct grain size groups and strengthening mechanisms based on solid solution strengthening and incoherent precipitates. Compression tests performed at room temperature and 600–800 °C identified compositions with superior yield strength depending on temperature. Thermal expansion measurements showed linear behavior for all alloys, with selected compositions exhibiting reduced coefficients up to 800 °C, indicating good potential for high-temperature applications.

Název v anglickém jazyce

Fe-Al-Si-X based intermetallic alloys

Popis výsledku anglicky

Fe–Al–Si–X intermetallic alloys are promising candidates for high-temperature structural applications. This study investigates Fe–28Al–Si alloys microalloyed with Mo, Ti, B, V, W, and Nb, analyzed in the as-cast state and after heat treatment at 800 °C/100 h. Microstructural characterization revealed distinct grain size groups and strengthening mechanisms based on solid solution strengthening and incoherent precipitates. Compression tests performed at room temperature and 600–800 °C identified compositions with superior yield strength depending on temperature. Thermal expansion measurements showed linear behavior for all alloys, with selected compositions exhibiting reduced coefficients up to 800 °C, indicating good potential for high-temperature applications.

Druh

O - Ostatní výsledky

CEP obor

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OECD FORD obor

20501 - Materials engineering

Projekt

<a href="/cs/project/EF16_019%2F0000843" target="_blank" >EF16_019/0000843: Hybridní materiály pro hierarchické struktury</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů