High-Speed Laser Surface Structuring for Thermal Spray Coating Preparation

Kód výsledku v 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>

Nalezeny alternativní kódy

RIV/49777513:23640/24:43972145

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

High-Speed Laser Surface Structuring for Thermal Spray Coating Preparation

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

High-Speed Laser Surface Structuring for Thermal Spray Coating Preparation

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20506 - Coating and films

Projekt

<a href="/cs/project/TH75020001" target="_blank" >TH75020001: Pokročilá příprava podkladového materiálu pro povlaky posuvným a ultrarychlým laserovým texturováním</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2024

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Physica Status Solidi A

ISSN

1862-6300

e-ISSN

1862-6319

Svazek periodika

221

Číslo periodika v rámci svazku

15

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

11

Strana od-do

2300710

Kód UT WoS článku

001154597900001

EID výsledku v databázi Scopus

2-s2.0-85183882269