Document type
ArticleVersion
Published versionPublication date
All rights reserved
Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/10469
Temperature dependence of the second order elastic constants of Cu-Zn-Al shape memory alloy in its martensitic and beta phases
Journal Title
Director/Tutor
Journal ISSN
Volume Title
Related resource
Abstract
The temperature dependence of the sound velocities for 13 propagation modes has been measured in a single crystal of Cu-Zn-Al monoclinic
1
8
R
martensite, using the pulse-echo method. By numerical procedure the complete set of nine second-order adiabatic elastic constants
(
C
ij
)
of the closest orthorhombic reference phase, their relative thermal variation
(
Γ
ij
)
, and the Debye temperature
(
θ
D
)
have been obtained. The values found in the martensitic phase have been compared to data avalaible for the high-temperature bcc
β
-phase in the same alloy system. The velocity surfaces in the corresponding crystallographic directions of both phases have also been computed at different temperatures. It has been shown that the mechanical stability of the lattice for some particular distortions decreases as the transformation temperature is approached in both the martensitic as well as in the
β
phase.
Subject (English)
Citation
Citation
GONZÀLEZ COMAS, Alfons, et al. Temperature dependence of the second order elastic constants of Cu-Zn-Al shape memory alloy in its martensitic and beta phases. Physical Review B. 1997. Vol. 56, num. 9, pags. 5200-5206. ISSN 0163-1829. [consulted: 10 of June of 2026]. Available at: https://hdl.handle.net/2445/10469