Bainitic-martensitic nodular cast iron with carbides

In this paper the possibility obtaining of upper bainite, lower bainite and martensite or their mixture in nodular cast iron with carbides has been presented. Conditions have been given, when in nodular cast iron with carbides for cooling at first in the form, then air-cooling auste-nite transformation to upper bainite, its mixture with lower bainite and martensite takes place. Transformations proceed during cooling and the crystallization of cast iron have been determined and the casting hardness has been presented.