%0 Journal Article
%T Grey Relational Optimization of Turning Parameters in Dry Machining of Austenitic Stainless Steel Using Zr Based Coated Tools
%A Kaushik Vijaya Prasad
%A Kishore Triambak Kashyap
%A Madapat Job Richard
%A Posina Gerard Prabhu Rao
%A Abhishek Rajole
%A Rabara Hiren
%J Open Journal of Applied Sciences
%P 337-347
%@ 2165-3925
%D 2017
%I Scientific Research Publishing
%R 10.4236/ojapps.2017.77027
%X The present work aims at the microstructural characterization of TiAlZrN/ Al<sub>2</sub>O<sub>3</sub> and TiAlZrN/Si<sub>3</sub>N<sub>4</sub> coatings deposited via lateral rotating cathodes. The coatings were deposited using Lateral Rotating Cathodes (LARC) technology. The deposited coatings were studied for its cross sectional morphology using scanning electron microscopy. Energy Dispersive Spectrometry was also conducted along the cross section to determine the elemental composition. Micro Vickers hardness test was conducted to determine the hardness of the coatings. The scanning electron microscope images showed that TiAlZrN/Al<sub>2</sub>O<sub>3</sub> coatings showed preferred columnar grain orientation with multilayered structure while TiAlZrN/Si3N4 coatings exhibit a dense grain structure. The TiAlZrN/Si<sub>3</sub>N<sub>4</sub> coating shows a hardness of 31.58 GPa while TiAlZrN/Al<sub>2</sub>O<sub>3</sub> coating shows a hardness of 25.40 GPa. Dry turning tests were performed on AISI 304 stainless steel. The TiAlZrN/Si<sub>3</sub>N<sub>4</sub> coatings show reduced flank wear. Both the coatings even under severe cutting conditions impart surface roughness of less than 1.5 ¦Ìm.
%K Coatings
%K Lateral Rotating Cathodes
%K Dry Machining
%K High Speed Machining
%K Coated Cutting Tools
%K Flank Wear
%K Dry Turning
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=77638