TY - JOUR N2 - This paper presents results of a study of the effect of inoculation of yttrium on the microstructure of AZ91 alloy. The concentration of the inoculant was increased in samples in the range from 0.1% up to 0.6%. The influence of Y on the thermal effects resulting from the phase transformations occurring during the crystallisation at different inoculant concentrations were examined with the use of Derivative and Thermal Analysis (DTA). The microstructures of the samples were examined with the use of an optical microscope; and an image analysis with a statistical analysis were also carried out. Those analyses aimed at examining oh the effect of inoculation of the Y on the differences between the grain diameters of phase αMg and eutectic αMg + γ(Mg17Al12) in the prepared examined material as well as the average size of each type of grain by way of measuring their perimeters. L1 - http://journals.pan.pl/Content/117788/PDF/AMM-2021-1-08-Rapiejko.pdf L2 - http://journals.pan.pl/Content/117788 PY - 2021 IS - No 1 EP - 63 DO - 10.24425/amm.2021.134759 KW - magnesium alloy AZ91 KW - yttrium KW - grain refining KW - Solidification process KW - Investment casting A1 - Mikusek, D. A1 - Rapiejko, C. A1 - Andrzejczak, A. A1 - Pacyniak, T. 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. 66 DA - 2020.12.22 T1 - Benefit Effect of Low Addition Yttrium on the Phase αMg and Eutectic αMg + γ(Mg17Al12) in AZ91 Alloy SP - 57 UR - http://journals.pan.pl/dlibra/publication/edition/117788 T2 - Archives of Metallurgy and Materials ER -