| Numéro |
J. Phys. Colloques
Volume 44, Numéro C9, Décembre 1983
ECIFUAS-4Fourth European Conference on Internal Friction and Ultrasonic Attenuation in Solids / Quatrième Conférence Européenne sur le Frottement Intérieur et l'Atténuation Ultrasonore dans les Solides |
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|---|---|---|
| Page(s) | C9-235 - C9-240 | |
| DOI | https://doi.org/10.1051/jphyscol:1983931 | |
ECIFUAS-4
Fourth European Conference on Internal Friction and Ultrasonic Attenuation in Solids / Quatrième Conférence Européenne sur le Frottement Intérieur et l'Atténuation Ultrasonore dans les Solides
J. Phys. Colloques 44 (1983) C9-235-C9-240
DOI: 10.1051/jphyscol:1983931
Institute of Solid State Physics, Nanjing University, Nanjing, China
Fourth European Conference on Internal Friction and Ultrasonic Attenuation in Solids / Quatrième Conférence Européenne sur le Frottement Intérieur et l'Atténuation Ultrasonore dans les Solides
J. Phys. Colloques 44 (1983) C9-235-C9-240
DOI: 10.1051/jphyscol:1983931
ULTRASONIC STUDY ON MARTENSITIC TRANSFORMATION IN AuCd ALLOY
Zhu Jin-song, Wang Ye-ning et Shen Hui-minInstitute of Solid State Physics, Nanjing University, Nanjing, China
Abstract
The ultrasonic attenuation curves in 4-46.5 MHz range for two kinds of AuCd alloys (47.5 at% Cd and 50 at% Cd) through martensitic transformation are different in shape. An marked peak is observed only in 50 at% Cd alloy. This disagreement and the different behaviour of frequency dependence of attenuation for these two alloys are explained taking account of that either interface boundary damping or fluctuation damping plays an important role as a consequence of the different range of measured frequency. The behaviour of damping related to pre-martensitic transition was studied in the KHz as well as MHz range.