J. Phys. IV France 05 (1995) C2-449-C2-452
Thermal Cycling and Growth of the Martensite Studied by NMR in an Ag-Cd AlloyP. Scherrer1, S. Rubini2, C. Dimitropoulos1 and F. Borsa3
1 Institut de Physique Expérimentale, EPFL, CH-1015 Lausanne, Switzerland
2 Dipartimento di Fisica ''A. Volta", Universita di Pavia, I-27100 Pavia, Italy
3 Dipartimento di Fisica "A. Volta", Universita di Pavia, I-27100 Pavia, Italy
113Cd NMR measurements in two Ag-Cd samples cycled between room temperature and temperatures below Ms are presented. The growth curve of the martensite on cooling presents a discontinuity in the cycling temperature region. It is shown that the method of analysis of the NMR data recently developed by us [Phys.Rev.B 46, 10563 (1992)], allows to detect subtle memory effects and the absolute determination of the fraction of the martensite in thermoelastic equilibrium with the parent phase at fixed temperature.
© EDP Sciences 1995