TY - JOUR N2 - A cast iron is gradient material. This means that depending on the cooling rate it is possible, at the same chemical composition and the physicochemical state of molten metal, to obtain material with a different structure. The connection between the wall thickness of the casting and the speed of its cooling expresses the casting module. Along with the module escalation a cooling rate of the casting is reducing what can cause changes of the microstructure and the increased tendency to the crystallization of distorted graphite forms. Inspections of experimental castings from nodular cast iron with different modules were conducted to the graphite form. L1 - http://journals.pan.pl/Content/86230/PDF/08_paper.pdf L2 - http://journals.pan.pl/Content/86230 PY - 2012 IS - No 1 DO - 10.2478/v10266-012-0008-y KW - nodular cast iron KW - Casting module KW - Graphite form A1 - Hosadyna, M. A1 - Dobosz, St.M. A1 - KusiƄski, J. PB - The Katowice Branch of the Polish Academy of Sciences DA - 2012 T1 - Influence of Over-Cooling the Nodular Cast Iron to the Graphite Form in the Surface Layer UR - http://journals.pan.pl/dlibra/publication/edition/86230 T2 - Archives of Foundry Engineering ER -