INTERFACIAL MOTION IN SHAPE MEMORY ALLOYS

M. Buisson , E. Patoor , M. Berveiller

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.

Domaines: Articles anciens

M. Buisson, E. Patoor, M. Berveiller. INTERFACIAL MOTION IN SHAPE MEMORY ALLOYS. Journal de Physique IV Proceedings, 1991, 01 (C4), pp.C4-463-C4-466. ⟨10.1051/jp4:1991470⟩. ⟨jpa-00250624⟩