Hysteretic behavior of a CuZnAl single crystal during super elastic shear deformation

Laurent Orgéas (1, 2) , Alexandre Vivet (3) , Denis Favier (2) , Christian Lexcellent (4) , Yehan Liu

1 CoMHet - Mécanique et Couplages Multiphysiques des Milieux Hétérogènes
2 3SR - Laboratoire sols, solides, structures - risques [Grenoble]
3 LRPMN - Laboratoire de recherche sur les propriétés des matériaux nouveaux
4 FEMTO-ST - Franche-Comté Électronique Mécanique, Thermique et Optique - Sciences et Technologies (UMR 6174)

The present work investigates the hysteretic behaviour of Cu–Zn–Al single crystal submitted to superelastic shear tests. Major symmetric loops were performed within the shear strain limit of the stress-induced martensitic transformation. Minor loops inside the major loops allowed to analyse more closely the hysteretic behaviour of the Cu–Zn–Al single crystal. Experimental results obey most of the phenomenological observations previously established for polycrystalline Ni–Ti shape memory alloys.

Mots clés: Shape memory alloys; Single crystal; Simple shear tests; Superelasticity; Hysteresis

Domaines: Mécanique des matériaux [physics.class-ph]

Laurent Orgéas, Alexandre Vivet, Denis Favier, Christian Lexcellent, Yehan Liu. Hysteretic behavior of a CuZnAl single crystal during super elastic shear deformation. Scripta Materialia, 2004, 51 (4), pp. 297-302. ⟨10.1016/j.scriptamat.2004.04.033⟩. ⟨hal-00019772⟩