RT Journal Article
SR Electronic
A1 Kuchariková, Lenka
A1 Tillová, Eva
A1 Belan, Juraj
A1 Chalupová, Mária
A1 Švecová, Ivana
A1 Čička, Roman
A1 Uhríčik, Milan
T1 Observation on the Formation of β-Al5FeSi Phase Depending on the Content of Fe in Aluminium Cast Alloy
JF Manufacturing Technology Journal
YR 2018
VO 18
IS 4
SP 611
OP 615
DO 10.21062/ujep/147.2018/a/1213-2489/MT/18/4/611
UL https://journalmt.com/artkey/mft-201804-0015.php
AB This work examines the effect on the formation of second Fe phase group Al-Fe-Si: Al5FeSi in aluminium alloy containing the iron of 0.123 wt. %, 0.454 wt. % and 0.655 wt. %. Studies were focused on the size and content of Al5FeSi changes and their effect on the porosity formation and mechanical properties in AlSi7Mg0.3 cast alloys. One of the key problems of these phases is their harmful morphology effect on to properties (mechanical, fracture, fatigue and so on) of aluminium casts. The increasing usage of recycled metals for production new casts is the main factor which influences content of iron in composition of aluminium cast alloys. The observation with using scanning electron microscope (SEM) and energy dispersive X-ray analysis (EDX), optical microscopy and quantitative analysis software confirmes enlarging of the β-needles phases particles and size of pores with increasing of iron content.