J. Phys. IV France 01 (1991) C7-117-C7-120
LASER CLADDING ON ALUMINIUM BASE ALLOYSM. PILLOZ1, J.M. PELLETIER1, A.B. VANNES2 and A. BIGNONNET3
1 GEMPPM-CALFETMAT, Bât. 403, INSA, F-69621 Villeurbanne cedex, France
2 MMP-CALFETMAT, ECL, BP. 167, F-69632 Ecully cedex, France
3 PSA-DRAS, Centre Technique Citroen, F-78140 Vélizy, France
laser cladding is often performed on iron or titanium base alloys. In the present work, this method is employed on aluminum alloys ; nickel or silicon are added by powder injection. Addition of silicon leads to sound surface layers, but with moderated properties, while the presence of nickel induces the formation of hard intermetallic compounds and then to an attractive hardening phenomena ; however a recovery treatment has to be carried out, in order to eliminate porosity in the near surface region.
© EDP Sciences 1991