Interplay between diffusive and displacive phase transformations: time-temperature-transformation diagrams and microstructures.

@article{Bouville2006InterplayBD,
  title={Interplay between diffusive and displacive phase transformations: time-temperature-transformation diagrams and microstructures.},
  author={Mathieu Bouville and Rajeev Saran Ahluwalia},
  journal={Physical review letters},
  year={2006},
  volume={97 5},
  pages={
          055701
        }
}
Materials which can undergo extremely fast displacive transformations as well as very slow diffusive transformations are studied using a Ginzburg-Landau framework. This simple model captures the essential physics behind microstructure formation and time-temperature-transformation diagrams in alloys such as steels. It also predicts the formation of mixed microstructures by an interplay between diffusive and displacive mechanisms. The intrinsic volume changes associated with the transformations… CONTINUE READING