An Iron-Carbon phase diagram is a graphical representation of the solid-liquid-gas phases of the Iron-Carbon system. It is a fundamental phase diagram that help...
An Iron-Carbon phase diagram is a graphical representation of the solid-liquid-gas phases of the Iron-Carbon system. It is a fundamental phase diagram that helps to understand the phases and phase transitions that occur when Iron and Carbon are combined.
The Iron-Carbon phase diagram is divided into three regions:
The solid phase: Iron in a solid, non-martensite state.
The liquid phase: Iron in a solid, martensite state.
The gas phase: Iron in a gas, which is not applicable to the typical conditions of this phase diagram.
At low temperatures and pressures, the Iron-Carbon system exists in the solid phase. When the temperature is increased above 1020°C, the Iron atoms start to move faster and form a solid with a face-centered cubic (FCC) structure. This phase is called the FCC phase.
When the temperature is further increased, the FCC phase transforms into the martensite phase at 1470°C. The martensite phase has a body-centered cubic (Bcc) structure, which is characterized by a close-packed arrangement of atoms.
Finally, when the temperature is increased even further, the martensite phase transforms into the gas phase at 2500°C. The gas phase is not applicable to the typical conditions of this phase diagram