| Numéro |
J. Phys. IV France
Volume 112, October 2003
|
|
|---|---|---|
| Page(s) | 147 - 150 | |
| DOI | https://doi.org/10.1051/jp4:2003853 | |
J. Phys. IV France 112 (2003) 147
DOI: 10.1051/jp4:2003853
Cryston model of formation of
strain induced martensite
M.P. Kashchenko, A.G. Semenovih and V.G. Chashchina Ural State Forest Engineering University, Physics Chair, Sybirskiy Trakt 37, 620100 Ekaterinburg, Russia
Abstract
The strain-induced martensite formation is considered as a consequence of carry of a threshold plastic deformation by crystons.
The sources of crystons (carriers of shear of a superdislocation type) are caused by interaction of dislocations belonging
to systems with intersected slip planes. For crystons (carriers of simple shear) the physical nature of morphological features
of a strain-induced martensite crystals and their difference from a case of stressinduced and cooling-induced martensites
is discussed. A case of crystal with habits of {hhl} - type is analyzed most explicitly The deloniialions of compression
and tension
along orthogonal axes
<001
> initiating the Bein strain process are considered as order parameters controlling the austenite stability. The connection
between the abnormal orientation relationship for
martensite crystals formed under tensite loading and the threshold deformation is obtained.
© EDP Sciences 2003