Changing the integrity of the material surface by combining Laser Surface Texturing and PVD Magnetron Sputtering technologies

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24210%2F24%3A00012385" target="_blank" >RIV/46747885:24210/24:00012385 - isvavai.cz</a>

Výsledek na webu

<a href="http://lmp-conference.cz/download/book_of_abstracts.pdf" target="_blank" >http://lmp-conference.cz/download/book_of_abstracts.pdf</a>

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

Changing the integrity of the material surface by combining Laser Surface Texturing and PVD Magnetron Sputtering technologies

Popis výsledku v původním jazyce

The presented research combines laser micromachining technology (LST, Laser Surface Texturing) using an ultra-short femtosecond laser beam and PVD deposition of thin layers using magnetron sputtering. This combination has multiple benefits. It provides uniform and highly adhesive coatings with improved tribological properties. By optimising the deposition parameters when applying a thin layer of TiN, an improvement in the tribological properties of the tool steel surface and the laser micromachining (LST) surface can be achieved. On the laser-modified and coated surface with Ellipses-texture, the wear reduction was almost 19 % compared to the reference texture. The TiN coating exhibited very good adhesion to the substrate with critical force values of LC3 greater than 45 N and a nano hardness value of 26.5 GPa. The adhesion of the TiN coating to the laser-affected substrate, as well as the resistance of the coating to damage, was high. Damage primarily occurred on the original polished surface around the edges of the machined textures, where stresses are likely to concentrate.

Název v anglickém jazyce

Changing the integrity of the material surface by combining Laser Surface Texturing and PVD Magnetron Sputtering technologies

Popis výsledku anglicky

The presented research combines laser micromachining technology (LST, Laser Surface Texturing) using an ultra-short femtosecond laser beam and PVD deposition of thin layers using magnetron sputtering. This combination has multiple benefits. It provides uniform and highly adhesive coatings with improved tribological properties. By optimising the deposition parameters when applying a thin layer of TiN, an improvement in the tribological properties of the tool steel surface and the laser micromachining (LST) surface can be achieved. On the laser-modified and coated surface with Ellipses-texture, the wear reduction was almost 19 % compared to the reference texture. The TiN coating exhibited very good adhesion to the substrate with critical force values of LC3 greater than 45 N and a nano hardness value of 26.5 GPa. The adhesion of the TiN coating to the laser-affected substrate, as well as the resistance of the coating to damage, was high. Damage primarily occurred on the original polished surface around the edges of the machined textures, where stresses are likely to concentrate.

Druh

O - Ostatní výsledky

CEP obor

—

OECD FORD obor

20506 - Coating and films

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2024

Kód důvěrnosti údajů

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