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http://hdl.handle.net/2445/10451
Title: | Third order elastic constants of bcc Cu-Al-Ni |
Author: | Gonzàlez Comas, Alfons Mañosa, Lluís |
Keywords: | Aliatges Transformacions martensítiques Alloys Martensitic transformations |
Issue Date: | 1996 |
Publisher: | The American Physical Society |
Abstract: | We have measured the changes in the ultrasonic wave velocity, induced by the application of uniaxial stresses in a Cu-Al-Ni single crystal. From these measurements, the complete set of third-order elastic constants has been obtained. The comparison of results for Cu-Al-Ni with available data for other Cu-based alloys has shown that all these alloys exhibit similar anharmonic behavior. By using the measured elastic constants in a Landau expansion for elastic phase transitions, we have been able to give an estimation of the value of a fourth-order elastic constants combination. The experiments have also shown that the application of a stress in the [001] direction, reduces the material resistance to a (110)[110] shear and thus favors the martensitic transition. |
Note: | Reproducció digital del document publicat en format paper, proporcionada per PROLA i http://dx.doi.org/10.1103/PhysRevB.54.6007 |
It is part of: | Physical Review B, 1996, vol. 54, núm. 9, p. 6007-6010. |
URI: | http://hdl.handle.net/2445/10451 |
Related resource: | http://dx.doi.org/10.1103/PhysRevB.54.6007 |
ISSN: | 0163-1829 |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
Files in This Item:
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