| Numéro |
J. Phys. IV France
Volume 112, October 2003
|
|
|---|---|---|
| Page(s) | 479 - 482 | |
| DOI | https://doi.org/10.1051/jp4:2003929 | |
J. Phys. IV France 112 (2003) 479
DOI: 10.1051/jp4:2003929
Fundamental aspects on the thermoelasticity and pseudoelasticity in single interface transformations
F.C. Lovey1, V. Torra2, A. Isalgué2 and A.M. Condo11 Centro Atomico Bariloche, Instituto Balseiro, CNEA-UNCu, 8400 Bariloche, Argentina
2 CIRG-DPA, Universitat Politecnica de Catalunya, Campus Nord B-4, 08034 Barcelona, Spain
Abstract
The thermoelasticity in the
2H single interface transformation in a Cu-Zn-A1 alloy was studied. The coefficient of thermoelasticity was found to be much
smaller than that of the
18R transformation. It was found that stacking faults are indeed created from the interaction of the 2H martensite with the
existing dislocations. However the 2H martensite, at variance with the 18R martensite, is twinned. Consequently the stacking
faults are not dragged by the moving interface, instead they end at some of the twin interfaces in each twin variant. In conclusion
there is no, or little, contribution of the stacking faults to the thermoelasticity.
© EDP Sciences 2003