RT Journal Article
SR Electronic
A1 Michna, Štefan
A1 Knaislová, Anna
A1 Svobodová, Jaroslava
A1 Novotný, Jan
A1 Michnová, Lenka
T1 Possibility of Eliminating Iron in Aluminium Alloy Through Sedimentation
JF Manufacturing Technology Journal
YR 2024
VO 24
IS 5
SP 802
OP 810
DO 10.21062/mft.2024.082
UL https://journalmt.com/artkey/mft-202405-0007.php
AB The article is dedicated to research on the elimination of high iron content (above 3-4%) in aluminium alloys through sedimentation. The aim was to determine the effect of sedimentation time on reducing the iron content in material from a refining bath with high iron content and to identify the phases formed in the structure. Melts were prepared from the material obtained from the refining bath, which consisted of an AlSi12 alloy with 3-4% Fe content. After melting, sedimentation was carried out for 2 hours, 4 hours, and 6 hours. Sedimentation was conducted while maintaining the alloy in a liquid state throughout the entire sedimentation period. After sedimentation and cooling of the castings, samples were taken to prepare metallographic specimens, and analyses were conducted to measure the iron content in the individual samples and to observe the reduction of iron content depending on the sedimentation time. Additionally, the identification and description of the intermetallic phases formed in the structures of the sedimenting castings from the refining bath were carried out using a scanning electron microscope with EDS analysis.