Troisiéme Conférence Européenne sur les Matériaux et les Procédés Avancés
J. Phys. IV France 03 (1993) C7-967-C7-970
Correlation between the wear behaviour and the mechanical properties of several surface treatmentsL. 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
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