RT Journal Article SR Electronic A1 Kuryło, Piotr A1 Papacz, Władysław A1 Tertel, Edward T1 The Importance of a Surface Layer of a Cast Iron Casting in the Design of Technological Processes JF Acta Mechanica Slovaca YR 2015 VO 19 IS 2 SP 12 OP 16 DO 10.21496/ams.2015.010 UL https://www.actamechanica.sk/artkey/ams-201502-0002.php AB The paper defines the scope and character of the surface layer of castings made of selected types of cast iron with special consideration of on spheroidal cast iron. The study also showed that on the basis of the distribution of hardness along the casting core, it is possible to define the distribution of structures and the reach of the surface layer of a cast iron casting.