Cementite, also known as iron carbide (Fe₃C), is a hard and brittle compound formed from iron and carbon. It plays a crucial role in the microstructure and properties of steel and cast iron alloys. Cementite is an important phase in the iron-carbon phase diagram, which describes how different phases of iron and carbon interact at various temperatures and compositions. ### Key Characteristics of Cementite: 1. **Composition**: Cementite contains 6.
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Cementite is iron carbide, , a hard phase important in many steel microstructures. It can occur with ferrite in organized mixtures such as pearlite.
The amount, size, and distribution of cementite affect mechanical behavior because a carbide particle interacts differently with deformation than the surrounding iron-rich phase. Chemical composition and spatial arrangement must therefore be considered together.