STUDY OF CHARACTERIZATION OF TiN AND TiAlN COATED SS 304 BY PHYSICAL VAPOUR DEPOSITION

Hard Coatings

Among many coatings being since decades, hard coatings are the one that are engineered and designed for various wear applications. Coatings substantially increase the life of tools with increased cuttings speeds and productivity in various cutting applications. Coating applications have spread in a wide range in industrial applications of which here we have used Physical Vapour Deposition technique. The material to be used as the substrate is the stainless steel 304 on which coatings of TiN and TiAlN will be carried out by PVD process. The chemical and mechanical tests will also be done to know the percentage of metals present and its initial properties respectively. Microstructural characterization is the key point of focus here and will be done by Field Emission Scanning Electron Microscopy (FESEM), X-Ray Deposition (XRD), Energy Dispersive Spectroscopy (EDS). The intended conclusion is that the various analysis will lead to disclose the improvements and changes in the microstructural properties of the substrate material on applying coatings.

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