Numéro
J. Phys. IV France
Volume 03, Numéro C7, Novembre 1993
The 3rd European Conference on Advanced Materials and Processes
Troisiéme Conférence Européenne sur les Matériaux et les Procédés Avancés
Page(s) C7-135 - C7-138
DOI http://dx.doi.org/10.1051/jp4:1993721
The 3rd European Conference on Advanced Materials and Processes
Troisiéme Conférence Européenne sur les Matériaux et les Procédés Avancés

J. Phys. IV France 03 (1993) C7-135-C7-138

DOI: 10.1051/jp4:1993721

Application of dynamical ion mixing techniques to the improvement of the fatigue resistance of a 316L stainless steel

P. VILLECHAISE1, J. MENDEZ1 and J. DELAFOND2

1  Laboratoire de Mécanique et Physique des Matériaux, URA 863 du CNRS, ENSMA, rue Guillaume VII, 86034 Poitiers, France
2  Laboratoire de Métallurgie Physique, URA 131 du CNRS, Université de Poitiers, 40 avenue du Recteur Pineau, 86022 Poitiers cedex, France


Abstract
In the last years new techniques involving ion implantation combined with a simultaneous deposition method in a sputtering evaporator have been developed at the University of Poitiers. These techniques have been employed to elaborate NiTi amorphous coatings in order to improve the fatigue resistance of a 316 L austenitic stainless steel at room temperature and 573 K. It has been shown that a significant improvement of the fatigue life is obtained by this way at 293 K and at 573 K due to a considerable modification of surface damage leading to an important delay for crack initiation.



© EDP Sciences 1993