Widmanstatten ferrite

Bhadeshia (1982) associated the two sets of parameters with (1) difliisional transformations such as the formation of ferrite and (2) shear-related transformations such as bainite or Widmanstatten ferrite. Some additional conditions were made concerning the upper temperature limit to the shear C curve and the M, temperature was calculated by a thermodynamic method (Bhadeshia 1981). The calculated T il diagrams were then compared with experiment for a wide number of alloys (Figs. 

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