Small punch testing of Fe-Al based alloys with Ti and Nb additions

0523976 - ÚFM 2025 RIV GB eng C - Conference Paper (international conference)
Dymáček, Petr - Dobeš, Ferdinand - Jarý, Milan - Jirásková, Yvonna - Pizúrová, Naděžda - Friák, Martin
Small punch testing of Fe-Al based alloys with Ti and Nb additions.
4th International Conference on PING 2019 - Modern Trends in Material Engineering. Bristol: IOP Publishing, 2020 - (Kučerová, L.; Jirkova, H.; Jeniček, S.), č. článku 012006. IOP Conference Series: Materials Science and Engineering, 723. ISSN 1757-8981.
[PING 2019 - International Conference on PING 2019 - Modern Trends in Material Engineering /4./. Plzeň (CZ), 10.09.2019-13.09.2019]
R&D Projects: GA MŠMT(CZ) LQ1601; GA ČR(CZ) GA17-22139S
Institutional support: RVO:68081723
Keywords : iron aluminides * small punch test * creep
OECD category: Materials engineering

Three Fe-Al-based alloys, a binary with 22 at. % of Al, a ternary with 22 at. % of Al and 7 at. % of Ti and a quaternary with 22 at. % of Al, 4 at. % of Ti and 4 at. % of Nb prepared by arc melting to small button type ingots were studied by small punch test and small punch creep test in order to obtain the high temperature tensile and creep properties. Evaluation of the results shows a significantly improved strength at high temperatures and creep resistance of the ternary and quaternary alloys compared to the binary alloy. The observation of the punched discs fracture surfaces related to the initial microstructure also helps to better understanding of the deformation and fracture behavior of these alloys at high temperatures.
Permanent Link: http://hdl.handle.net/11104/0311444