RT Journal Article
SR Electronic
A1 Švec, Martin
A1 Vodičková, Věra
A1 Hanus, Pavel
T1 The effect of heat treatment on the structure of Nb and C doped Fe3Al iron aluminides
JF Manufacturing Technology Journal
YR 2012
VO 12
IS 2
SP 254
OP 259
DO 10.21062/ujep/x.2012/a/1213-2489/MT/12/2/254
UL https://journalmt.com/artkey/mft-201202-0033.php
AB The alloyed iron aluminides with Fe3Al matrix are used as structural materials. Nb, Zr, Ta additives in combination with carbon appear like promising for high-temperature applications [1, 2]. The carbon addition leads to the formation of carbides (NbC, ZrC, TaC) in the structure of the alloy [2, 3]. The presence of this phase in an appropriate shape could enhance high-temperature mechanical properties of aluminides. The effect of the Nb and C addition and the effect of the heat treatment on the phase composition of this alloy were studied [4, 5]. The alloys investigated in this work were annealed at 1000°C/1h and 1150°C/1h in the air. The phase composition was studied by light optical microscopy (LOM) and scanning electron microscopy (SEM) with energy dispersive analysis (EDX).