| Issue |
J. Phys. IV France
Volume 06, Number C8, Décembre 1996
ICIFUAS 11Eleventh International Conference on Internal Friction and Ultrasonic Attenuation in Solids |
|
|---|---|---|
| Page(s) | C8-811 - C8-814 | |
| DOI | https://doi.org/10.1051/jp4:19968174 | |
ICIFUAS 11
Eleventh International Conference on Internal Friction and Ultrasonic Attenuation in Solids
J. Phys. IV France 06 (1996) C8-811-C8-814
DOI: 10.1051/jp4:19968174
Institute of Solid State Physics, Russian Academy of Sciences, Chernogolovka, Moscow district 142432, Russia
© EDP Sciences 1996
Eleventh International Conference on Internal Friction and Ultrasonic Attenuation in Solids
J. Phys. IV France 06 (1996) C8-811-C8-814
DOI: 10.1051/jp4:19968174
Internal Friction and Elastic Properties of Nanocrystalline Fe-Si-Nb-Cu Alloy
N.P. Kobelev and Ya.M. SoiferInstitute of Solid State Physics, Russian Academy of Sciences, Chernogolovka, Moscow district 142432, Russia
Abstract
The anomalous elastic modulus reduction in the nanocrystalline Fe73.4 Cu1Nb3.1Si13.4B9.1 alloy was found. Sound wave velocity and internal friction as a function of annealing temperature were measured in a magnetic field by the vibrating reed technique. In the as-prepared state a large modulus defect was observed which disappeared after annealing above a characteristic temperature (much less than the crystallization temperature) defined as a temperature of the structural rearrangement. The "in-situ" measurements revealed the irreversible internal friction peak and an accompanying elastic modulus increase at this temperature. In the same temperature region the irreversible changes of the ΔE were observed.
© EDP Sciences 1996