J. Phys. IV France 01 (1991) C4-271-C5-276
STUDY ON THE MOBILITY OF THE MARTENSITIC INTERPHASES ON THE Cu-Al-Ni SHAPE MEMORY ALLOYSV. RECARTE1, J. SAN JUAN1, J. HERREROS1 and M.L. NÓ2
1 Dpto. Fisica Materia Condensada, Fac. Ciencias, Universidad del Pais Vasco. Apdo. 644, SP-48080 Bilbao, Spain
2 Dpto. Fisica Aplicada II, Fac. Ciencias, Universidad del Pais Vasco. Apdo. 644, SP-48080 Bilbao, Spain
In this work we have studied the mobility of martensitic interphases on Cu-Al-Ni policrystalline shape memory alloys with different concentrations. For that reason we have used a microdeformation technic very useful for the study of the policrystalline alloys. This microdeformation measurement has let us to observe two transformation stages linked to [MATH] and [MATH] phases nucleation. Finally we discuss the effect of the internal stresses, stored during the quenching treatment, on the nucleation of the different martensitic phases.
© EDP Sciences 1991