Charasteristics of TiCN coating deposited by cathodic arc evaporation
Journal Title: Journal of Achievements in Materials and Manufacturing Engineering - Year 2017, Vol 1, Issue 84
Abstract
Purpose: In this paper, we report the research results on the structure and mechanical and tribological properties of TiCN coating deposited by cathodic arc evaporation process on the X40CrMoV5-1 steel substrate. Design/methodology/approach: The morphology of the surface of the investigated coating was performed using a scanning electron microscope Zeiss Supra 35. Diffraction and thin film structure were tested with the use of the transmission electron microscopy. The cohesion and adhesion properties of the coating were made using the scratch test on the CSEM REVETEST device. The friction coefficient and wear rate of coating were determined in the ball-on-disc test. The whole study was complemented by X-ray crystallography. Findings: The TiCN coating demonstrated columnar structure as well as good adherence to the substrate - the critical load LC2 is 63 N. It was found that the structure of the investigated coating consisted of fine crystallites. Basing on the XRD pattern of the TiCN, the occurrence of fcc phase was observed in the coating, the texture direction <111> is perpendicular to the sample surface. In sliding dry friction conditions, the friction coefficient for the investigated element is set in the range between 0.32-0.37. The coatings demonstrated a high hardness (3000 HV). Practical implications: In order to evaluate with more detail the possibility of applying these surface layers in tools, further investigations should be concentrated on the determination of the thermal fatigue resistance of the coatings. The very good mechanical properties of the TiCN coatings make them suitable in industrial applications. Originality/value: The investigation results will provide useful information to applying the TiCN coatings for the improvement of mechanical properties of the hot work tool steels.
Authors and Affiliations
K. Lukaszkowicz, A. Paradecka, W. Kwaśny, R. Potempa
Keywords
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- EP ID EP248213
- DOI 10.5604/01.3001.0010.7566
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