Numéro
J. Phys. Colloques
Volume 43, Numéro C4, Décembre 1982
ICOMAT-82
International Conference on Martensitic Transformations
Page(s) C4-151 - C4-156
DOI https://doi.org/10.1051/jphyscol:1982416
ICOMAT-82
International Conference on Martensitic Transformations

J. Phys. Colloques 43 (1982) C4-151-C4-156

DOI: 10.1051/jphyscol:1982416

LATTICE RELAXATION AND NUCLEATION OF STRESS INDUCED MARTENSITE AND TWINNING

T. Suzuki1 et M. Wuttig2

1  Institute of Applied Physics, University of Tsukuba, Sakura, Ibaraki 305, Japan
2  Department of Metallurgical Engineering, University of Missouri-Rolla, Rolla, Missouri 65401, U.S.A.


Abstract
The lattice relaxation observed in the course of the measurement of the automodulation is interpreted as the stress induced martensite or twinning. The nucleation process of the martensite and twin is shown to consist of two parts. The first is an introduction of a lattice pulse wave by thermal activation. The second is a mechanical process by which the lattice pulse develops into the martensite or twin. It is suggested that the first process is aided by point defects.