PT  - JOURNAL ARTICLE
AU  - Kuchariková, Lenka
AU  - Tillová, Eva
AU  - Belan, Juraj
AU  - Chalupová, Mária
AU  - Švecová, Ivana
AU  - Čička, Roman
AU  - Uhríčik, Milan
TI  - Observation on the Formation of β-Al5FeSi Phase Depending on the Content of Fe in Aluminium Cast Alloy
DP  - 2018 Sep 1
TA  - Manufacturing Technology Journal
PG  - 611--615
VI  - 18
IP  - 4
AID - 10.21062/ujep/147.2018/a/1213-2489/MT/18/4/611
IS  - 12132489
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.