Abstract: Surface coating is one of the most useful and economical way to improve the surface properties of the materials. For this circumstance, Physical Vapor Deposition (PVD) is a unique method for coating of thin films. In this work coating is performed by magnetron sputtering deposition method. The properties of coating are varied with some of the process parameters like bias voltage, total gas pressure, volume of nitrogen gas, coating time, substrate temperature, substrate rotation and substrate roughness. Hence in this present work the characteristics of Chromium nitride (CrN) thin films on tool steel (grade: 6959) were investigated as function of Substrate temperature and Nitrogen gas flow rate. The CrN deposited films were categorized with X-ray diffraction (XRD) to disclose the development of different phases. The adhesive strength of the coating was studied by scratch tester and the microhardness of the thin film was determined by microhardness testing machine. Further, Optimization of the thin film coating is done by Response Surface Methodology (RSM).
Keywords: CrN thin films, Magnetron sputtering, PVD, Tool steel (grade 6959), XRD
Title: CHARACTERIZATION AND OPTIMIZATION OF CrN COATINGS ON TOOL STEELS (6959)
Author: Prabakaran.M, Suresh Kumar.S, Ramyesh.K.R, Srinivasan.R.V
International Journal of Mechanical and Industrial Technology
ISSN 2348-7593 (Online)
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