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J. Phys. IV France
Volume 05, Numéro C2, Février 1995
IIIrd European Symposium on Martensitic Transformations
Page(s) C2-257 - C2-261
IIIrd European Symposium on Martensitic Transformations

J. Phys. IV France 05 (1995) C2-257-C2-261

DOI: 10.1051/jp4:1995239

Dynamic Study of the Thermoelastic Transformation of Cu-Zn-Al single crystals by X-Ray diffraction

C. Jourdan1, J. Gastaldi1, G. Grange1, S. Belkahla2 and C. Guénin2

1  CRMC2-CNRS, Campus de Luminy, case 913, 13288 Marseille cedex 09, France
2  INSA-GEMPPM, 20 avenue Albert Einstein, 69621 Villeurbanne cedex, France

The martensitic transformation of Cu-Zn-Al- single crystals has been followed in situ and in real time by synchrotron X-ray topography. We have shown that at the Ms temperature, the transformation proceeds by nucleation and growth of transformation variants associated by self-accomodating pairs. The nucleation of these variants is triggered by the crystal substructure. When the transformation is multivariant we have displayed the development of elastic stresses, accompanying the growth of variants, inducing a reversible curvature of the lattice planes.

© EDP Sciences 1995