Fe–C System. Stable and Metastable Equilibrium Diagrams
In this chapter, first, classification of the cast irons based on the Fe–C binary diagram is carried out. White cast irons are those that follow the metastable Fe–C diagram and give eutectics with ledeburite and cementite. Grey cast irons are those that follow the stable Fe–C diagram and give eutectics with graphite and austenite. In this first chapter, additions (graphitizing elements, inoculants, carbonigenous agents and silicon) used to facilitate either the metastable or the stable solidifications are also described.