Czasopismo | INŻYNIERIA MATERIAŁOWA | Rocznik 2013 - zeszyt 4

Structural and phase analysis of CrAlSiN/DLC deposited by hybrid PVD/PACVD method

nr katalogowy: 79724

The research topics referring to the fabrication of wear resistant coatings represent one of the most essential directions of surface engineering development, guaranteeing the production of coatings with high functional properties for mechanical properties and resistance to tribological wear. From among a myriad of techniques enhancing the durability of materials, CVD (Chemical Vapour Deposition) and PVD (Physical Vapour Deposition) methods are playing an important role in industrial practice [1, 2]. An innovative approach in surface treatment is represented by the application of hybrid technologies offering a broad spectrum of types of the associated processes permitting to fabricate a whole array of materials with their unique properties, for precisely defined applications, unachievable with the standard surface treatment methods [3÷5]. The structure of the PVD deposited coating is influenced by many parameters. The coatings are usually chemically resistant at reasonably elevated temperature, provided that they are thick enough, tight, and do not display columnar structure [6]. Mechanical properties of hard coatings deposited by PVD technique to a great extent depend on their structure. One can use a great number of interactions to characterise composition and structure of coatings. Different methods, namely, the X-ray diffraction examinations (XRD), examinations on the transmission electron microscope (TEM), and on the scanning electron microscope (SEM) make it possible to determine thoroughly the essential details of the crystalline structure of the coatings. The goal of this work was investigations concerned structural and phase analysis of CrAlSiN/DLC double-layer coating deposited by hybrid PVD/PACVD method on the X40CrMoV5-1 hot work tool steel substrate. INVESTIGATION METHODOLOGY The production process of hybrid double-layer coatings was performed continuously with a π300 device by PLATIT fitted with LARC (Lat[...]

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