Study on surface properties of coated WC-Co alloy based on laser reduction process
Industrial Lubrication and Tribology
ISSN: 0036-8792
Article publication date: 5 January 2024
Issue publication date: 16 January 2024
Abstract
Purpose
The purpose is to explore the improvement mechanism of coating and laser micro-texture on the surface properties of cemented carbide, so as to give full play to the technical advantages of both and improve the overall surface properties of the material.
Design/methodology/approach
The surface hardness of the coating was measured by a microhardness tester, the surface element composition of the coating was tested by an energy spectrum analyzer and the phase was measured by an X-ray diffractometer to observe the surface morphology after the friction and wear experiment.
Findings
Laser will generate new oxide and nitride films on the surface of the coating, which will improve the hardness of the coating surface and the bonding strength between the coating and the substrate. The surface micro-texture can collect wear debris during the friction process, reduce abrasive wear and play a good role in inhibiting the expansion of the coating failure zone.
Originality/value
Most of the research on traditional laser coating is to process micro-texture first and then coating. This study is the opposite. In this paper, the modification effect of laser on the coating surface is explored, and the parameters of laser and coating are optimized, which paves the way for the subsequent milling experiments of textured coating tools.
Keywords
Acknowledgements
Thank the Youth Science Foundation project (Project No.: 52005140) “Research on milling behavior and surface integrity of titanium alloy by ball milling cutter under the synergistic effect of mesoscopic geometric characteristics and coating” for the support of this paper.
Citation
Yang, S., Wang, D. and Xiao, Z. (2024), "Study on surface properties of coated WC-Co alloy based on laser reduction process", Industrial Lubrication and Tribology, Vol. 76 No. 1, pp. 131-140. https://doi.org/10.1108/ILT-08-2023-0261
Publisher
:Emerald Publishing Limited
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