Accès gratuit
Numéro
J. Phys. IV France
Volume 01, Numéro C4, Novembre 1991
EUROPEAN SYMPOSIUM ON MARTENSITIC TRANSFORMATION AND SHAPE MEMORY PROPERTIES
Page(s) C4-409 - C4-414
DOI https://doi.org/10.1051/jp4:1991461
EUROPEAN SYMPOSIUM ON MARTENSITIC TRANSFORMATION AND SHAPE MEMORY PROPERTIES

J. Phys. IV France 01 (1991) C4-409-C4-414

DOI: 10.1051/jp4:1991461

PSEUDOELASTIC BEHAVIOUR AND TWO WAY MEMORY EFFECT IN Cu-Zn-Al ALLOYS

C. ROGUEDA1, P. VACHER1, C. LEXCELLENT1, L. CONTARDO2 and G. GUÉNIN2

1  Laboratoire de Mécanique Appliquée, Faculté des Sciences, Université de Franche-Comté, La Bouloie, Route de Gray, F-25030 Besançon cedex, France
2  Groupe d'Etude de Métallurgie et de Physique des Matériaux, U.A. 341, INSA, Av. A. Einstein, F-69621 Villeurbanne cedex, France


Abstract
Different types of training sequences and two memory effect (TWME) of polycristalline Cu-Zn-Al alloys have been studied : Thin plates have been loaded in torsion and tests samples were loaded in pure tension. Simultaneous resistance measurements were made to know the volume fraction of the martensite. As Friend, it is shown that the first martensite platelets formed are the most operational for training. In addition, the relation between the pseudoelastic strain [MATH] and the martensite fraction z is non linear. The training can be quantified with the introduction of an internal kinematical stress [MATH]



© EDP Sciences 1991