| Numéro |
J. Phys. IV France
Volume 112, October 2003
|
|
|---|---|---|
| Page(s) | 475 - 478 | |
| DOI | https://doi.org/10.1051/jp4:2003928 | |
J. Phys. IV France 112 (2003) 475
DOI: 10.1051/jp4:2003928
Mobility of quenched-in defects, non-linear anelasticity and stabilisation of martensite in copper-based alloys
S. Kustov1, S. Golyandin1, K. Sapozhnikov1, E. Cesari2 and J. van Humbeeck31 A.F. loffe Physico-Technical lnstitute, Politekhnicheskaya 26, 194021 St. Petersburg, Russia
2 Department of Physics, University of Balearic Islands, Ctra. Valldemossa km 7.5, 07071 Palma de Mallorca, Spain
3 Department MTM, KU Leuven, De Croylaan 2, 3001 Heverlee, Belgium
Abstract
Non-linear anelasticity of several Cu-based
martensitic alloys, exhibiting different stabilization properties, has been studied over wide temperature (8 to 300 K) and
strain amplitude (2*10
-7 to 2*10
-4) ranges. Temperature ranges of quenched-in defect mobility were found to be similar for stabilizing Cu-Zn-A1 and for Cu-A1-Ni
alloy, which is not prone to the stabilization, but different for two stabilizing alloys (Cu-A1-Be and Cu-Zn-A1). On the other
hand, the interaction modes of quenched-in defects with linear/planar lattice defects differ significantly for Cu-A1-Ni and
Cu-Zn-A1 alloys.
© EDP Sciences 2003