High-Speed Laser Surface Structuring for Thermal Spray Coating Preparation

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F24%3A00585672" target="_blank" >RIV/61389021:_____/24:00585672 - isvavai.cz</a>
Alternative codes found
RIV/49777513:23640/24:43972145
Result on the web
<a href="https://onlinelibrary.wiley.com/doi/10.1002/pssa.202300710" target="_blank" >https://onlinelibrary.wiley.com/doi/10.1002/pssa.202300710</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/pssa.202300710" target="_blank" >10.1002/pssa.202300710</a>

Result language
angličtina
Original language name
High-Speed Laser Surface Structuring for Thermal Spray Coating Preparation
Original language description
The preparation of surfaces for coating processes is indispensable for maximal adhesion and good coating results. These technical surfaces can be treated by chemical, mechanical, or physical procedures. In thermal spray coating, grit blasting is a standard process for surface preparation. This mechanical roughening and activation of the surfaces is fast and easy to handle. On the negative side, the grit gets wasted and the generated pattern is inflexible. Therefore, attempts to substitute grit blasting with a laser application is discussed in this article. Herein, a theoretical evaluation of high-speed laser surface texturing (LST) is performed to find limits and points for the optimization of these processes. To estimate the surface processing rates, continuous wave, nanosecond, and ultrashort pulse laser machined dimples and grooves are investigated, and results of the spray coatings are presented afterward. The steel substrates are coated with Stellite 6 and tungsten. Adhesion tests and coating structures are analyzed. In terms of the optimization of the laser texturing, in situ temperature measurements show the influence of the laser process speed on the thermal load of the substrate. The influence of the number of scanning repetitions on heat accumulation during LST is also analyzed.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20506 - Coating and films

Project
<a href="/en/project/TH75020001" target="_blank" >TH75020001: Advanced coating substrate preparation by shifted and ultrafast laser texturing</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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