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UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2024-11-23 17:52 |
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Conference: Bucharest University Faculty of Physics 2016 Meeting
Section: Optics, Spectroscopy, Plasma and Lasers
Title:
Laser cladding of tungsten carbide-cobalt coating on stainless steel substrate: process optimization and
microstructure characterization
Authors:
M. A. SAVESCU (1,2)
Affiliation:
1) Bucharest University, Faculty of Physics, Magurele, IF 077125, Romania
2) National Institute for Lasers, Plasma and Radiation Physics, Center for Advanced Laser Technologies,
Magurele, IF 077125, Romania
E-mail
mihai.savescu@inflpr.ro
Keywords:
laser cladding, metallic powder, continuous wave, microstructure
Abstract:
The influence of laser cladding process parameters on coating microstructure and hardness was investigated in this study. Laser cladding on stainless steel 316L was carried out using a continuous wave Yb:YAG laser and a three-beam powder feed nozzle. Coatings were made with WC base powder (90 wt%) blended with Co powder (10 wt%). The coating microstructure was characterised by electron microscopy and XRD. A process window for this process was created.
References:
[1] Nima Shamsaei, Aref Yadollahia, Linkan Bian, Scott M. Thompson, An overview of Direct Laser Deposition for additive manufacturing;Part II: Mechanical behavior, process parameter optimization and control, http://dx.doi.org/10.1016/j.addma.2015.07.002
[2] J.R. Lawrence, J. Pou, D.K.Y. Low and E. Toyserkani, Advances in Laser Materials Processing, 2010.
[3] J.M. Amado, M.J. Tobar, A. Yáńez, V. Amigó, J.J. Candel, Crack Free Tungsten Carbide Reinforced Ni(Cr) Layers obtained by Laser Cladding, doi:10.1016/j.phpro.2011.03.043
Acknowledgement:
The author wishes to express his sincere appreciation to Lect. Univ. Dr. Iulian Ionita for guidance and support and to Dr. Eduard Grigore whose help has been of great value. This work has been supported by the National Institute for Laser, Plasma and Radiation Physics.
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