J. Phys. IV France 01 (1991) C4-463-C4-466
INTERFACIAL MOTION IN SHAPE MEMORY ALLOYSM. BUISSON, E. PATOOR and M. BERVEILLER
Laboratoire de Physique et Mécanique des Matériaux, U.R.A. C.N.R.S. N° 1215, Institut Supérieur de Génie Mécanique et Productique, Ile du Saulcy, F-57045 Metz cedex 1, France
We investigate interfacial motions between martensitic variants. Analytically, we describe simply the topology and kinematics of a representative volume constituted of several compatible variants whose interfaces have a velocity differing from those of the material particles. The corresponding driving force is deduced using Eshelby's energy momentum formalism and compared with a critical threshold from which we define a reorientation criterion. The interface movement is taken into account via the concept of an inclusion with moving boundary and we propose a formulation of the global behaviour.
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