Synthesis and Characterization of Hard Coating for Industrial Application

Abstract

Machining industries and boiler industries are facing problems like lower wear and corrosion resistance, higher porosity, a lower hardness which decrease the life of the component and reduces the performance. Physical vapour deposition and high velocity oxy fuel techniques are available for hard coating of various substrates. Nitride coating improves hardness, wear and corrosion resistance of the base material. newline The aim of this work is ot understand the performance of steel material after coating and analyse parameter after coating which is currently used for many industrial applications physical vapor deposition method used for synthesis hard coating on cutting tool and other machining application while high velocity oxy fuel coating techniques used for development of coating on boiler tube. Present work represents TI based nitride coating line TIAIN and TICRN as well as CR based nitride coating developed by PVD coating. Magnetron sputtering process was used for the synthesis of hard coating. Deposited film on the substrate material reveals the TIAIN, TICRN and CRN coated components an ASTM 240-12, type 304 substrate as well on miranda cutting tool. Nitrogen is supplied by flow into the deposition chamber. Thermal analysis implemented by thermogravimetric analysis. XRD, AFM and FESEM with EDS implemented for microstructural study. Hardness wear, cutting and friction coefficient has been studied to check out mechanical properties. Titanium chromium nitride imparted maximum corrosion resistance by showing least corrosion rate of 0.380 mpy in compare to the substrate coated with TIAIN as well as the uncoated substrate. newline