This paper assesses the effect of laser remelting on nickel-base coatings produced by thermal spraying. NiAl, NiCr, and NiCrAlMoFe layers are deposited on steel substrates via flame and plasma spraying and treated with a CO2 laser operated at different power levels. The treated layers are evaluated based on microstructure, hardness profile, and wear resistance. Plasma-sprayed NiCrAlMoFe layers treated at a power of 1000 W exhibited the highest wear resistance. Paper includes a German-language abstract.
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Issue Section:Novel Processes and Analytical Techniques