Stable Eutectic—Graphite Morphologies
This chapter is entirely dedicated to the stable eutectic, that of austenite and graphite. This eutectic is abnormal due to the significant differences in both the proportions and the melting temperatures of each constituent. This last aspect will have an important influence on the structure and properties of the eutectic. The type and size of the graphite will depend on both the amount of carbon and the cooling conditions. Five types of graphite will be identified. The presence of one or other kind of graphite will condition the properties of the grey cast iron.