Ball and Carstensen theoretically investigated the possibility of the occurrence of non-classical austenite-martensite interfaces and studied the cubic-to-tetragonal case extensively. Here, we aim to present an analysis of such interfaces recently observed by Seiner et al. in CuAlNi single crystals, undergoing a cubic-to-orthorhombic transition. We show that they can be described by the non-linear elasticity model for martensitic transformations and we make some predictions regarding the volume fractions of the martensitic variants involved, as well as the habit plane normals.
@article{arxiv.1108.6220,
title = {An analysis of non-classical austenite-martensite interfaces in CuAlNi},
author = {J. M. Ball and K. Koumatos and H. Seiner},
journal= {arXiv preprint arXiv:1108.6220},
year = {2011}
}