Original scientific paper

Influence of surface roughness on selected properties of the TiAlN coating

J. Kowalczyk ; Kielce University of Technology, Faculty of Mechatronics and Mechanical Engineering, Poland
M. Madej ; Kielce University of Technology, Faculty of Mechatronics and Mechanical Engineering, Poland
K. Piotrowska ; Kielce University of Technology, Faculty of Mechatronics and Mechanical Engineering, Poland
K. Radon-Kobus ; Kielce University of Technology, Faculty of Mechatronics and Mechanical Engineering, Poland

Abstract

The HS6-5-2C steel samples with different surface roughness were used for the tests. After grinding had a roughness parameter of Ra = 0,03 μm, and after polishing Ra = 0,01 μm. A TiAlN coating was applied to the substrate prepared in this way. Using a confocal microscope with an interferometric mode, the geometrical structure of the samples was analyzed. The optical strain gauge was used to measure the contact angle. Tribological tests were carried out in conditions of technically dry friction. The polished sample with the coating was characterized by a more stable course of the friction coefficient, lower wear and a smaller wetting angle.

Keywords

HS6-5-2C steel; TiAlN coating; wear; friction; wetting angle

Hrčak ID:

307416

URI

https://hrcak.srce.hr/307416

Publication date:

1.1.2024.

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