Manufacturing Technology 2018, 18(4):611-615 | DOI: 10.21062/ujep/147.2018/a/1213-2489/MT/18/4/611

Observation on the Formation of β-Al5FeSi Phase Depending on the Content of Fe in Aluminium Cast Alloy

Lenka Kuchariková1, Eva Tillová1, Juraj Belan1, Mária Chalupová1, Ivana ©vecová1, Roman Čička2, Milan Uhríčik1
1 Faculty of Mechanical Engineering, University of ®ilina. Univerzitná 8215/1, 010 26 ®ilina. Slovakia
2 Faculty of Material Science and Technology in Trnava, University of ®ilina. J. Bottu 25, 917 24 Trnava. Slovakia

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.

Keywords: β-Al5FeSi formation, iron in aluminium cast alloys, porosity of aluminium cast alloys

Published: September 1, 2018  Show citation

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Kuchariková L, Tillová E, Belan J, Chalupová M, ©vecová I, Čička R, Uhríčik M. Observation on the Formation of β-Al5FeSi Phase Depending on the Content of Fe in Aluminium Cast Alloy. Manufacturing Technology. 2018;18(4):611-615. doi: 10.21062/ujep/147.2018/a/1213-2489/MT/18/4/611.
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