Open AccessFRACTURE BEHAVIOR OF FeAlSi INTERMETALLICS
Author(s) -
Jaroslav Čech,
Petr Haušild,
Miroslav Karlı́k,
Kateřiová,
Filip Průša,
Pavel Novák,
Jaromı́r Kopeček
Publication year - 2020
Publication title -
acta polytechnica ctu proceedings
Language(s) - English
Resource type - Journals
ISSN - 2336-5382
DOI - 10.14311/app.2020.27.0006
Subject(s) - intermetallic , spark plasma sintering , materials science , alloy , fracture (geology) , metallurgy , modulus , sintering , chemical composition , composite material , thermodynamics , physics
The study is devoted to the intermetallic alloy FeAl20Si20 (wt.%) with the potential applications in high temperature aggressive environments. The samples of the same chemical composition were prepared by spark plasma sintering from the different mechanically alloyed powders (pure elements and pre-alloyed powders). Differences in mechanical properties were characterized. Whereas no significant differences were found in hardness and Young´s modulus, fracture resistance was higher for the samples from pre-alloyed powders in which Palmqvist and lateral cracks were observed (contrary to the sample made of pure elements where only Palmqvist cracks were identified).