Title: Structure, mechanical properties and corrosion resistance of PVD gradient coatings deposited onto the X40CrMoV5-1 hot work tool steel substrate

Authors: K. Lukaszkowicz, J. Szewczenko, M. Pancielejko

Addresses: Institute of Engineering Materials and Biomaterials, Silesian University of Technology, Konarskiego St. 18A, 44-100, Gliwice, Poland. ' Institute of Engineering Materials and Biomaterials, Silesian University of Technology, Konarskiego St. 18A, 44-100, Gliwice, Poland. ' Institute of Mechatronics, Nanotechnology and Vacuum Technique, Koszalin University of Technology, Raclawicka St. 15–17, 75-620, Koszalin, Poland

Abstract: This paper presents research results on the structure, mechanical properties and corrosion resistance of TiAlN, TiCN and AlSiCrN gradient coatings deposited by PVD methods on the X40CrMoV5-1 steel substrate. The coatings demonstrated columnar structure as well as good adhesion to the substrate, the latter not only being the effect of adhesion but also by the transition zone between the coating and the substrate, developed as a result of diffusion and high-energy ion action that caused mixing of the elements in the interface zone. The critical load LC2 lies within the range of 46-59 N, depending on the coating type.

Keywords: gradient PVD coatings; SEM; scratch test; GDOS; structure; mechanical properties; corrosion resistance; hot work tool steels; tool steel substrates.

DOI: 10.1504/IJMPT.2010.034267

International Journal of Materials and Product Technology, 2010 Vol.39 No.1/2, pp.148 - 158

Published online: 31 Jul 2010 *

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