Laser Cladding of Ni-Cr-B-Fe-Al Alloy on a Steel Support

Sanda Maria LEVCOVICI; Dan Teodor LEVCOVICI; Constantin GHEORGHIEŞ; Simona BOICIUC

Auteur/ices

Sanda Maria LEVCOVICI "Dunarea de Jos" University of Galati, Romania
Dan Teodor LEVCOVICI S.C. Uzinsider Engineering S.A. Galaţi, Romania
Constantin GHEORGHIEŞ "Dunarea de Jos" University of Galati, Romania
Simona BOICIUC "Dunarea de Jos" University of Galati, Romania

Mots-clés :

laser, cladding, nickel, microstructure, microhardness, difractometry

Résumé

Multilayer coating by injection of powder with 8.9% Cr, 4.5% Fe, 5.1% B, 2.4% Al, 0.6% Cu; all reminded of Ni, as chemical composition, in melted bath by CO₂ continuous wave laser connected to x-y-z coordinate table was tested in order to rise the wear and corrosion resistance of 0.45% C superficial steel layers. Layers made by different laser running were characterized by macro and microstructure analysis, as well as phase quality analysis by X ray diffractometry, micro hardness analysis and hardness finding on coated layer surface in order to establish the optimal deposit running.