Mechanism of the FCC-BCC martensitic transformation with the fastest rearrangement of close-packed planes. II. Orientation relationships

Abstract

The dynamic theory of the formation of martensite crystals as a result of an fcc (γ) - bcc (α) transformation that implies the fastest rearrangement of {111}γ planes into {110}α planes is used to derive interphase orientation relationships. It is shown that the orientation relationships, the macroshear, and the habit plane are uniquely related to the path of the martensitic reaction that is specified by the driving wave process. The dependence of orientation relationships on the elastic properties of the original fcc lattice is found analytically. © 2008 Springer Science+Business Media, Inc.