<abstract xmlns="http://www.w3.org/1999/xhtml"><p>The contribution deals with analysis of the influence of the substrate surface laser ablation before deposition process to improve the adhesion of coating-substrate system. The coatings were applied to the high-speed steel 6-5-2-5 (STN 19 852) and WC-Co cemented carbide with cobalt content of 10 wt%. LAteral Rotating Cathodes (LARC<sup>®</sup>) process was chosen for evaporation of individual CrN layers. Influence of laser ablation on the substrate morphology, structure, roughness, presence of residual stresses inside the substrates and layers and their adhesion behavior between the layers and the base material was studied. Scanning electron microscopy fitted with energy dispersive spectroscopy was utilized to investigate morphology and fracture areas of substrates with CrN layers. X-ray diffraction analysis was employed to detect the residual stresses measurements. Adhesion between the coatings and substrate was analyzed using “Mercedes” testing.</p></abstract>

The contribution deals with analysis of the influence of the substrate surface laser ablation before deposition process to improve the adhesion of coating-substrate system. The coatings were applied to the high-speed steel 6-5-2-5 (STN 19 852) and WC-Co cemented carbide with cobalt content of 10 wt%. LAteral Rotating Cathodes (LARC®) process was chosen for evaporation of individual CrN layers. Influence of laser ablation on the substrate morphology, structure, roughness, presence of residual stresses inside the substrates and layers and their adhesion behavior between the layers and the base material was studied. Scanning electron microscopy fitted with energy dispersive spectroscopy was utilized to investigate morphology and fracture areas of substrates with CrN layers. X-ray diffraction analysis was employed to detect the residual stresses measurements. Adhesion between the coatings and substrate was analyzed using “Mercedes” testing.

Effect of Pulsed Laser Ablation on the Increase of Adhesion of CRN Coating-Substrate

Slovak University of Technology in Bratislava

Faculty of Materials Science and Technology in Trnava, Institute of Materials Science

Department Of Mechanical And Industrial Engineering

Research Papers Faculty of Materials Science and Technology Slovak University of Technology

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

The contribution deals with analysis of the influence of the substrate surface laser ablation before deposition process to improve the adhesion of...

Effect of Pulsed Laser Ablation on the Increase of Adhesion of CRN Coating-Substrate

Published Online: Feb 23, 2019

Page range: 61 - 70

Received: Nov 19, 2018

Accepted: Jan 02, 2019

DOI: https://doi.org/10.2478/rput-2018-0031

Keywords
CrN coatings, laser ablation, substrate surface, Scanning electron microscopy, adhesion, residual stresses

© 2018 Paulína Zacková et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Effect of Pulsed Laser Ablation on the Increase of Adhesion of CRN Coating-Substrate

Published Online: Feb 23, 2019

Page range: 61 - 70

Received: Nov 19, 2018

Accepted: Jan 02, 2019

DOI: https://doi.org/10.2478/rput-2018-0031

KeywordsCrN coatings, laser ablation, substrate surface, Scanning electron microscopy, adhesion, residual stresses

© 2018 Paulína Zacková et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
CrN coatings, laser ablation, substrate surface, Scanning electron microscopy, adhesion, residual stresses