Recrystallization Modelling

Dr. Zurob has developed a generalized model for the nucleation of static recrystallization [Acta Materialia, 54, 3983].  The model captures the development of subgrains into recrystallized grains and accurately predicts the recrystallization temperature and the critical recrystallization strain.  The most important feature of the model is that it contains only one adjustable parameter.  This is an important improvement over existing JMAK-type models which typically contain 2 or 3 fitting parameters that do not vary in a systematic way with deformation, temperature or composition.  The model also predicts the nucleation rate, in contrast to existing models which assume site-saturation or a constant, predetermined nucleation rate.  Our group has applied model to the static recrystallization of several materials, including steel, Aluminum and Mg alloys. A copy of the recrystallization model for AZ31 is available for download under resources/research.   

The work on the recrystallization of steel [Mat. Sci. Forum, 753, 417] was recognized by the Best Young Researcher Award at the 5th International Recrystallization and Grain Growth Conference (Sydney 2013). In addition, the nucleation model has been modified to examine dynamic recrystallization leading in collaboration with colleagues at Monash University and Shanghai Jiao Tong University. In addition to the wide adoption of the model in academia, certain features of the model have also been incorporated by an international group that develops software for modelling recrystallization in Al-alloys.