Surface Repair of Tool Made of 12 Ni Maraging Steel by Laser Cladding of NiCoMo Powder

Zoran Bergant; Janez Grum; Janez Marko Slabe; José Luis Ocaña

doi:10.4028/www.scientific.net/AMR.89-91.675

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 89-91Surface Repair of Tool Made of 12 Ni Maraging...

Surface Repair of Tool Made of 12 Ni Maraging Steel by Laser Cladding of NiCoMo Powder

Abstract:

Surface repair experiments with Nd:YAG coaxial laser cladding of NiCoMo maraging powder were made on specimens from maraging steel (EN 10027-2, mat. no. 1.2799). The influences of different modes of laser-beam guidance with various powder mass flows and with different degrees of overlapping of individual traces on the dilution and the repair area were determined. The micro and macroscopic analyses of microsections of fusion zone (FZ), heat affected zone (HAZ) and through-depth microhardness were analysed after cladding and after subsequent solution and precipitation annealing. The microchemical (EDS) analysis was performed at various depths. The residual stresses in the clad face and in the clad toe were determined and compared, using the hole-drilling method.

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Periodical:

Advanced Materials Research (Volumes 89-91)

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675-680

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.89-91.675

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Online since:

January 2010

Authors:

Zoran Bergant, Janez Grum, Janez Marko Slabe, José Luis Ocaña

Keywords:

Laser Cladding, Maraging Steel, Microhardness, Residual Stress, Surface Integrity

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