Laser postprocessing of ceramic and tungsten carbide HVOF coatings
https://doi.org/10.46973/0201-727X_2025_1_17
Abstract
The article analyzes the current state of research in the field of laser post-processing of ceramic and tungsten carbide coatings applied using thermal spraying (TS) technologies. It is shown that laser processing with surface melting is the most appropriate. Laser remelting makes it possible to obtain coatings with improved strength properties. It was found that the structure of thermal spray coatings (TSC) changed significantly, the dispersion and porosity decreased, and their performance characteristics, such as wear resistance, hardness, and corrosion resistance, increased. The reasons for the observed changes in the structural and strength characteristics of coatings after laser heat treatment (LHT) of HVOF coatings with remelting are indicated and recommendations for choosing processing modes are given.
About the Authors
I. A. Antoshin
Samara State Technical University (SSTU)
Russian Federation
Russian Federation
Antoshin Ilya Aleksandrovich, Postgraduate Student
S. I. Yaresko
Samara Branch of P. N. Lebedev Physical Institute of the Russian Academy of Sciences
Russian Federation
Russian Federation
Yaresko Sergey Igorevich, Doctor of Engineering Sciences, Professor, Head of the Laboratory of Laser-Induced Processes (LLIP)
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Review
For citations:
Antoshin I.A., Yaresko S.I. Laser postprocessing of ceramic and tungsten carbide HVOF coatings. Vestnik Rostovskogo Gosudarstvennogo Universiteta Putej Soobshcheniya. 2025;(1):17-25. (In Russ.) https://doi.org/10.46973/0201-727X_2025_1_17
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