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The Fe-C system

The Fe-C system. Pearlite. The Fe-C system. See time-temperature-transformation (TTT) curves - this one for 0.8 w/o C. Pearlite is two phases FE + CM. Pearlite forms by diffusion - takes time. diffusion rate high,  G rxn low . diffusion rate low,  G rxn high. The Fe-C system.

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The Fe-C system

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  1. The Fe-C system Pearlite

  2. The Fe-C system See time-temperature-transformation (TTT) curves - this one for 0.8 w/o C Pearlite is two phases FE + CM Pearlite forms by diffusion - takes time diffusion rate high, Grxn low diffusion rate low, Grxn high

  3. The Fe-C system Proeutectoid FE starts to form Hypoeutectoid steels - cooling from AUS range

  4. The Fe-C system Hypoeutectoid steels - cooling from AUS range Eutectoid (P) forms

  5. The Fe-C system Hypoeutectoid steels - cooling from AUS range Proeutectoid FE + P P FE

  6. The Fe-C system Hypoeutectoid steels - where does C go?

  7. The Fe-C system Hypoeutectoid steels - strength vs P content

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