| Numéro |
J. Phys. Colloques
Volume 43, Numéro C4, Décembre 1982
ICOMAT-82International Conference on Martensitic Transformations |
|
|---|---|---|
| Page(s) | C4-591 - C4-595 | |
| DOI | https://doi.org/10.1051/jphyscol:1982493 | |
ICOMAT-82
International Conference on Martensitic Transformations
J. Phys. Colloques 43 (1982) C4-591-C4-595
DOI: 10.1051/jphyscol:1982493
1 Departement Metaalkunde, Katholieke Universiteit Leuven, Belgium
2 Groupe d'Etudes de Métallurgie Physique et Physique des Matériaux, INSA, Bâtiment 502, Lyon, France
International Conference on Martensitic Transformations
J. Phys. Colloques 43 (1982) C4-591-C4-595
DOI: 10.1051/jphyscol:1982493
SURFACE RELAXATION AS A POSSIBLE ORIGIN OF SURFACE MARTENSITE
M. Chandrasekaran1, G. Guénin2 et L. Delaey11 Departement Metaalkunde, Katholieke Universiteit Leuven, Belgium
2 Groupe d'Etudes de Métallurgie Physique et Physique des Matériaux, INSA, Bâtiment 502, Lyon, France
Abstract
The origin of surface martensite has been investigated. It is shown that the surface transformation and the resulting martensites cannot be explained by composition changes near the surface but are most likely attributable to atom relaxations at the surface. The stress free strains in the vicinity of the surfaces associated with such atom relaxations are considered sufficient to produce mechanical instability of the β lattice to a {110}<1[MATH]0> shear and thus leading to the formation of particular martensite variants.