Laser Cladding of Fe-NbC Alloy on AISI 304L: The Effect of Processing Parameters on Microstructure and Wear

Increasing the service life of components operating under wear conditions is the target of several industrial areas. Special alloys can improve the performance of components, but their processability can be a challenge. This work embraces this challenge assessing the effect of processing parameters...

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Bibliographic Details
Published in:Journal of materials engineering and performance 2025-01, Vol.34 (1), p.686-698
Main Authors: Pacheco, Jeferson T., Meura, Vitor H., Teixeira, Moisés F., da Silva, Leandro J., de Oliveira, Ana Sofia C. M.
Format: Article
Language:English
Subjects:
Characterization and Evaluation of Materials
Chemistry and Materials Science
Corrosion and Coatings
Engineering Design
Materials Science
Original Research Article
Quality Control
Reliability
Safety and Risk
Tribology
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Summary:Increasing the service life of components operating under wear conditions is the target of several industrial areas. Special alloys can improve the performance of components, but their processability can be a challenge. This work embraces this challenge assessing the effect of processing parameters by laser cladding on the microstructure and wear of Fe-NbC coatings. Single beads coatings were deposited with varying laser power, scanning speed and pre-placed powder layer thicknesses. The crack-free beads coatings were characterized for their dilution, microstructure, microhardness and wear. Sound coatings were obtained for higher laser power, lower scanning speed and lower thickness of the pre-placed powder layer, i.e., conditions with higher energy density. Increasing the energy density decreases the amount of NbC in the microstructure, but no significant impact on microhardness was measured. However, better wear performance was observed for the higher energy density, showing that processing parameters have a great influence on the microstructure and properties of Fe-NbC coatings.
ISSN:1059-9495
1544-1024
DOI:10.1007/s11665-023-09017-7