RT Journal Article
SR Electronic
A1 Švec, Martin
A1 Vodičková, Věra
A1 Keller, Vojtěch
A1 Hanus, Pavel
T1 The Effect of Chromium Addition and Heat Treatment on Phase Composition of Cast FeAlSi Alloys
JF Manufacturing Technology Journal
YR 2018
VO 18
IS 6
SP 1029
OP 1033
DO 10.21062/ujep/219.2018/a/1213-2489/MT/18/6/1029
UL https://journalmt.com/artkey/mft-201806-0026.php
AB A structural studies have been performed on Fe-Al-Si iron aluminides with or without addition of chromium prepared by standard cast process. The effect of chromium addition and subsequent annealing on the phase composition was studied. Very fine precipitates were observed on the grain boundaries in the alloy without chromium addition. On the other hand, complex chromium carbides formed in the structure of chromium doped alloy. The annealing of alloy without Cr addition leads to partial dissolution of secondary phase particles. Unlike the chromium-doped alloy, where the secondary phase coarsed during the annealing process.The phase composition of the alloys was studied by means of scanning electron microscopy (SEM) equipped by energy dispersive X-ray spectrometer (EDX). The electron backscattered diffraction (EBSD) was used for phase verification.