Dislocation description of martensite interfaces based on misfit analysis

It is shown how the methodology and theoretical relationships developed in the framework of the O-lattice theory can be applied for study of martensite interfaces containing a single set of dislocations. The observed orientation relationship, the habit plane orientation, matching or mismatching of certain sets of planes in the habit plane of lath martensite in an Fe-Ni-Mn alloy can be explained consistently by the present approach. Attention is drawn to the use of measurable A g vectors for characterizing the habit plane and for interpreting plane matching in the habit plane. (c) 2006 Elsevier B.V. All rights reserved.