Ternary Fe-Al-Si alloys prepared by mechanical alloying and spark plasma sintering

0533325 - FZÚ 2021 RIV US eng A - Abstract
Kopeček, Jaromír - Laufek, F. - Karlík, M. - Haušild, P. - Čech, J. - Školáková, A. - Nová, K. - Severa, B. - Šesták, J. - Novák, P. - Průša, F.
Ternary Fe-Al-Si alloys prepared by mechanical alloying and spark plasma sintering.
Microscopy and Microanalysis. Cambridge University Press. Roč. 25, Aug (2019), s. 2618-2619. ISSN 1431-9276. E-ISSN 1435-8115
R&D Projects: GA ČR(CZ) GA17-07559S; GA MŠMT EF16_013/0001406; GA MŠMT(CZ) LO1409; GA MŠMT(CZ) LM2015088
Grant - others:OP VVV - SAFMAT(XE) CZ.02.1.01/0.0/0.0/16_013/0001406
Institutional support: RVO:68378271
Keywords : iron aluminides * silicides * SEM * EBSD
OECD category: Materials engineering
Method of publishing: Limited access
https://doi.org/10.1017/S1431927619013825

Ordered aluminides and silicides of transition metals are interesting structural materials with good corrosion resistance and high-temperature mechanical properties. They are cheap and they allow us to avoid use of critical raw materials as is chromium. Nevertheless, they suffer by brittleness at ambient temperatures and growth of large grains at conventional casting as other intermetallics. To evade complicated, non-homogeneous microstructure with overgrown intermetallic grains in cast materials we selected powder metallurgy technique of spark plasma sintering (SPS). We investigate set of samples with composition FeAl20Si20 (in wt. %), FeAl35Si5, and FeAl30Si10.

Permanent Link: http://hdl.handle.net/11104/0311737