Issue
J. Phys. Colloques
Volume 46, Number C10, Décembre 1985
Eighth International Conference on Internal Friction and Ultrasonic Attenuation in Solids
Page(s) C10-581 - C10-588
DOI https://doi.org/10.1051/jphyscol:198510129
Eighth International Conference on Internal Friction and Ultrasonic Attenuation in Solids

J. Phys. Colloques 46 (1985) C10-581-C10-588

DOI: 10.1051/jphyscol:198510129

MARTENSITIC TRANSFORMATION AND ELASTIC CONSTANTS

T. SUZUKI

Institute of Applied Physics, University of Tsukuba, Sakura, Ibaraki 305, Japan


Abstract
The deformation energy barrier for the martensitic transformation is estimated from the data of the elastic constants. The deformation energy barrier for B.C.C → F.C.C martensitic transformation is, at most, of the order of the thermal energy at room temperature. The deformation energy barrier between B.C.C. and F.C.C can be surmounted by thermal energy at temperatures higher than Ms. The martensitic transformation is proposed to be understood as the freezing process of the non-linear lattice vibration, i.e. solitons, instead of the soft phonons.