TY - JOUR N2 - The performed examinations concerning the process of filling the plaster ceramic moulds with aluminium alloys allowed to assess the influence of various methods of introducing the metal into the mould cavity on the macro- and microstructure of the obtained experimental castings. The comparison was performed for castings with graded wall thickness made either of EN AC-44000 alloy or of EN AC-46000 alloy, produced either by gravity casting, or by gravity casting with negative pressure generated around the mould (according to the Vacumetal technology), or by counter-gravity casting. It was found that the silicon crystals grow in size with an increase in wall thickness due to the slower cooling and solidification of castings. L1 - http://www.journals.pan.pl/Content/88343/PDF/14_paper.pdf L2 - http://www.journals.pan.pl/Content/88343 PY - 2014 IS - No 4 DO - 10.2478/afe-2014-0089 KW - Innovative Foundry Materials and Technologies KW - Plaster mould KW - Counter-gravity casting KW - Vacuum casting A1 - Nadolski, M. A1 - Konopka, Z. A1 - Łągiewka, M. A1 - Zyska, A. PB - The Katowice Branch of the Polish Academy of Sciences DA - 2014 T1 - The Influence of the Method of Mould Filling on the Quality of Castings Made of EN AC-44000 or EN AC-46200 Alloy UR - http://www.journals.pan.pl/dlibra/publication/edition/88343 T2 - Archives of Foundry Engineering ER -