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| Numéro |
J. Phys. IV France
Volume 01, Numéro C4, Novembre 1991
EUROPEAN SYMPOSIUM ON MARTENSITIC TRANSFORMATION AND SHAPE MEMORY PROPERTIES
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| Page(s) | C4-265 - C4-269 | |
| DOI | https://doi.org/10.1051/jp4:1991440 | |
EUROPEAN SYMPOSIUM ON MARTENSITIC TRANSFORMATION AND SHAPE MEMORY PROPERTIES
J. Phys. IV France 01 (1991) C4-265-C4-269
DOI: 10.1051/jp4:1991440
1 Dept. Estructura i constituents de la Matèria, Facultat de Fisica, Universitat de Barcelona, Diagonal 645, Barcelona, Catalonia, Spain
2 Laboratoire de Traitement du Signal et Ultrasons, INSA, Bât 502, 20 avenue Albert Einstein, Villeurbanne, France
© EDP Sciences 1991
J. Phys. IV France 01 (1991) C4-265-C4-269
DOI: 10.1051/jp4:1991440
ULTRASONIC ATTENUATION DURING THE MARTENSITIC TRANSFORMATION IN Cu-Zn-Al SHAPE MEMORY ALLOYS
Ll. MAÑOSA1, J.L. MACQUERON2 and J.C. BABOUX21 Dept. Estructura i constituents de la Matèria, Facultat de Fisica, Universitat de Barcelona, Diagonal 645, Barcelona, Catalonia, Spain
2 Laboratoire de Traitement du Signal et Ultrasons, INSA, Bât 502, 20 avenue Albert Einstein, Villeurbanne, France
Abstract
We report measurements of the attenuation of longitudinal elastic waves, carried out using a broad-band immersion pulse-echo technique. The ultrasonic attenuation has been measured as a function of temperature and frequency during the martensitic transformation of monocrystalline and polycrystalline Cu-Zn-Al alloys. It has been shown that the most likely mechanism producing ultrasonic attenuation is the scattering of the ultrasonic waves by regions with different acoustic impedances.
© EDP Sciences 1991