Journal
COMPUTATIONAL MATERIALS SCIENCE
Volume 77, Issue -, Pages 230-235Publisher
ELSEVIER
DOI: 10.1016/j.commatsci.2013.04.044
Keywords
Displacive phase transitions; Phase-field model; Bainite transformation; Cubic crystal; Autocatalysis
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Funding
- EPSRC DTA
- TATA
- Royal Academy of Engineering
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A phase-field model for the computation of microstructure evolution for the bainite transformation has been developed. The model has a classical phase-field foundation, incorporates the phenomenological displacive transformation theory and the symmetric analysis of cubic crystals, and is able to reproduce realistic grain morphology and crystal orientation after adequate calibration. Using the free energy expression for the shape change of displacive transformations along with the free energy formula for the chemical free energy change of the two phases derived from established regular solution models, the current model is able to deal with autocatalysis. (c) 2013 Elsevier B.V. All rights reserved.
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