Image:Phase diag iron carbon.PNG

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An English version of Diag phase fer carbone.png, with grey tones cleaned up and some modification of text. Adaptation by Polyparadigm. Description of original image follows:

Iron-carbon phase diagram under atmospheric pressure

This diagram is limited by pure iron on the left and by iron carbide on the right. The mains phases are:

  • α iron: ferrite, ferritic steel
  • γ iron: austenite, austenitic steel
  • iron carbide: cementite, Fe3C.

We can see an eutectic and an eutectoid; these phases crystallise as a stacking of fine strips of pure phases (iron and cementite) in case of the eutectoid, or a pure iron containing small balls of cementite for the eutectic. Although it is heterogeneous, these phases behave like homogeneous pure bodies.

Steel is between 0 and 2 mass percent of carbon. Cast iron is between 1,7 and 6,67%.

Author : Christophe Dang Ngoc Chan


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current18:34, 9 July 2005409×379 (3 KB)Polyparadigm (An English version of Diag phase fer carbone.png, with grey tones cleaned up and some modification of text. Adaptation by Polyparadigm. Description of original image follows: ---- Iron-carbon phase diagram under atmospheric pressure This diag)
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