TY - JOUR N2 - The paper describes the influence of graphite shape, size and amount to electrical properties of different cast irons. Experiments of electrical resistivity measurements were conducted during solidification of four different melts in different time intervals from melt treatment by inoculation and nodularization. Metallographic analyses were made in order to determine the shape, size, distribution and amount of graphite and correlate results with electrical resistivity measurements. It was found out that nodular graphite is giving the lowest electrical resistivity and is decreased during solidification. Electrical resistivity of lamellar cast iron is increased during solidification since lamellas interrupt metal matrix severely There is no significant difference in resistivity of vermicular cast iron from nodular cast iron. Smaller size of graphite and lower amount of graphite and higher amount of metal matrix also decrease resistivity. L1 - http://journals.pan.pl/Content/110174/PDF/AMM-2019-1-52-Kastelic.pdf L2 - http://journals.pan.pl/Content/110174 PY - 2019 IS - No 1 EP - 369 DO - 10.24425/amm.2019.126261 KW - solidification KW - Grey cast iron KW - Electrical resistivity KW - graphite shape KW - microstructure A1 - Petrič, M. A1 - Mrvar, P. A1 - Kastelic, P. 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. 64 DA - 2019.03.14 T1 - Prediction of microstructure of grey cast irons by electrical resistivity measurements SP - 365 UR - http://journals.pan.pl/dlibra/publication/edition/110174 T2 - Archives of Metallurgy and Materials ER -