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J. Phys. IV France
Volume 07, Numéro C5, November 1997
IVth European Symposium on Martensitic Transformations
Page(s) C5-227 - C5-232
IVth European Symposium on Martensitic Transformations

J. Phys. IV France 07 (1997) C5-227-C5-232

DOI: 10.1051/jp4:1997535

Stability of γ1' Martensite in Cu-Base Alloys

V. Novák and P. Sittner

Institute of Physics, Academy of Sciences of the Czech Republic, Na Slovance 2, 18040 Prague 8, Czech Republic

The analysis of the nonequilibrium σ-T diagrams constructed from the results of tension/compression thermomechanical tests with [001] Cu-based shape memory alloy/SMA/ single crystals was found to be a good way how to understand complex path dependent phenomena exhibited by SMA single crystals. Particularly, it has been shown that the γ1' martensite phase forming in Cu-based SMA may exist in much wider range of stress-temperature conditions than would be expected just from the results of thermal cycles or tensile loading-unloading tests with single crystals usually presented in the literature.

© EDP Sciences 1997