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) C7-967 - C7-970
DOI http://dx.doi.org/10.1051/jp4:19937149
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) C7-967-C7-970

DOI: 10.1051/jp4:19937149

Correlation between the wear behaviour and the mechanical properties of several surface treatments

L. LELAIT1, A. LINA1, R. REZAKHANLOU1, J.C. VAN DUYSEN1 and J. VON STEBUT2

1  EDF, Les Renardières, Direction des Etudes et Recherches, 77250 Moret sur Loing, France
2  LSGS, Ecole des Mines, Parc de Saurupt, 54042 Nancy, France


Abstract
Surface mechanical strength of chromium base (electrolytic and plasma sprayed) coatings is studied for friction and wear applications in nuclear environment. Indentation, scratch, and wear testing results are compared. In particular intrinsic coating brittleness is investigated as a mechanism responsible for impact wear. Electrolytic, hard chromium plate has a wear resistance well below that of the spray coated specimens studied. Acoustic emission level and brittle damage features are shown to be correlated.



© EDP Sciences 1993