J. Phys. IV France 07 (1997) C5-89-C5-94
Reconstruction of Martensitic Nucleation Process from Morphological AttributesM.P. Kashchenko, V.V. Letuchev, I.A. Alexina and A.V. Nefedov
Physics Chair, Ural State Wood Technology Academy, Sybirskyi Trakt 37, 620032 Ekaterinburg, Russia
Within the framework of the concepts of heterogeneous nucleation and wave growth of martensite the refinement of a technique of account of wave normals Nw to expected habits planes are carried out. The technique allows to connect orientations of Nw with definite areas of nucleation of crystals in an elastic field of defects. The specific results are presented for system Cu-Zn. As separate rectilinear dislocations with lines [11-1] and dislocation loops basic elements of which are pieces of these lines are considered here as probable centers of nucleation. It is shown, that the spectrum of Nw can be coordinated with experimentally observable space distribution of normals Ne in a vicinity of a pole [2 11 12]. The similar coordination opens additional opportunities to reconstruct a stage of martensite nucleation from morphological attributes and to transform a distribution of habits in the informative parameter.
© EDP Sciences 1997