Modelling and simulation is sometimes said to be the third way of doing science, the first two being theory and experiment; see this essay in Science for example:
A typical two phase microstructure consists of a topologically continuous `matrix' phase in which islands of `precipitate' phase are embedded. Usually, the matrix phase is also the majority phase in terms of volume fraction. However, sometimes this relationship between the volume fraction and topology is reversed, and this reversal is known as phase inversion. Such a phase inversion can be driven by an elastic moduli mismatch in two-phase solid systems. In this paper (submitted to Philosophical magazine), we show phase inversion, and the effect of the elastic moduli mismatch and elastic anisotropy on such inversion.
During solid-solid phase transformations elastic stresses arise due to a difference in lattice parameters between the constituent phases. These stresses have a strong influence on the resultant microstructure and its evolution; more specifically, if there be externally applied stresses, the interaction between the applied and the transformation stresses can lead to rafting.
Rafting is the preferential coarsening of (dilatationally) misfitting precipitates in a direction parallel (P-type) or perpendicular (N-type) to an applied stress. In the materials literature, it is sometimes argued that rafting is an elasto-plastic phenomenon, and that plastic pre-strains are essential for rafting. In this paper (which we have submitted to Acta Materialia) we show that purely elastic stress driven rafting is a distinct possibility.