Landau model of the microstructure and shape memory properties of cubic–monoclinic-II martensite

We apply a novel Landau model to describe the microstructural evolution resulting from the cubic–monoclinic-II (CM-II) martensitic transformation in shape memory alloys (SMAs). Successful simulations of the CM-II, represented by the square–rectangle and square–oblique analogs under the plane-strain condition, confirm that the model outperforms the conventional phase-field model by providing a correct description of typical features of SMAs, and also gives better results than mechanical models in terms of capturing the observed CM-II microstructural patterns.