PT Journal
AU Svec, M
   Vodickova, V
   Keller, V
   Hanus, P
TI The Effect of Chromium Addition and Heat Treatment on Phase Composition of Cast FeAlSi Alloys
SO Manufacturing Technology Journal
PY 2018
BP 1029
EP 1033
VL 18
IS 6
DI 10.21062/ujep/219.2018/a/1213-2489/MT/18/6/1029
DE Fe3Al - type iron aluminides; silicon addition; phase structure; heat-treatment
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.
ER