TY - JOUR N2 - The paper deals with the influence of manganese in AlSi7Mg0.3 alloy with higher iron content. Main aim is to eliminate harmful effect of intermetallic – iron based phases. Manganese in an alloy having an iron content of about 0.7 wt. % was graded at levels from 0.3 to 1.4 wt. %. In the paper, the effect of manganese is evaluated with respect to the resulting mechanical properties, also after the heat treatment (T6). Morphology of the excluded intermetallic phases and the character of the crystallisation of the alloy was also evaluated. From the obtained results it can be concluded that the increasing level of manganese in the alloy leads to an increase in the temperature of the β-Al5FeSi phase formation and therefore its elimination. Reducing the amount of β-Al5FeSi phase in the structure results in an improvement of the mechanical properties (observed at levels of 0.3 to 0.8 wt. % Mn). The highest addition of Mn (1.4 wt.%) leads to a decrease in the temperature corresponding to the formation of eutectic silicon, which has a positive influence on the structure, but at the same time the negative sludge particles were also present L1 - http://journals.pan.pl/Content/109160/PDF/AMM-2018-4-41-Bolibruchova.pdf L2 - http://journals.pan.pl/Content/109160 PY - 2018 IS - No 4 EP - 1888 DO - 10.24425/amm.2018.125119 KW - AlSi7Mg0.3 KW - β-Al5FeSi phase KW - manganese KW - thermal analysis A1 - Bolibruchová, D. A1 - Podprocká, R. A1 - Pastirčák, R. A1 - Major-Gabryś, K. PB - Institute of Metallurgy and Materials Science of Polish Academy of Sciences PB - Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences VL - vol. 63 DA - 2018.12.12 T1 - The Role of Mn in Aluminium Alloys with a Higher Iron Content SP - 1883 UR - http://journals.pan.pl/dlibra/publication/edition/109160 T2 - Archives of Metallurgy and Materials ER -